{"title":"Battery cable","description":"\u003cp\u003eFine-stranded flexible cable for battery, starter, inverter and windlass runs. Tinned copper for anything on a boat or exposed to damp, plain copper where it stays dry.\u003c\/p\u003e\u003cp\u003eSold cut to the metre or on 5, 10 and 25 metre coils. If you want it cut to length with lugs crimped and heat shrunk on, use the \u003ca href=\"\/pages\/configure\"\u003emade-to-measure configurator\u003c\/a\u003e instead.\u003c\/p\u003e\u003cp\u003eEvery size lists its current rating in free air, its resistance per metre and its outside diameter, so you can size a run properly rather than guessing.\u003c\/p\u003e","products":[{"product_id":"tinned-battery-cable-16mm2","title":"Tinned Marine Battery Cable 16mm² 110A","description":"\u003cp\u003e\u003cstrong\u003eTinned copper flexible battery cable, 16mm², rated 110A.\u003c\/strong\u003e Fine-stranded, electrolytically tinned copper in a flexible PVC sheath. This is the cable to use anywhere it may see salt air, condensation, bilge water or road salt, which on a boat means everywhere.\u003c\/p\u003e\n\n\u003ch3\u003eWhy tinned\u003c\/h3\u003e\n\u003cp\u003ePlain copper corrodes from the strand surface inward, and it does it invisibly, underneath the lug where you cannot inspect it. The joint slowly gains resistance, then gets warm, then fails. Tinning puts a barrier on every individual strand. It costs a little more and it is the correct answer for marine, for a campervan engine bay or underfloor run, and for any off-grid installation that is not in a dry indoor cabinet.\u003c\/p\u003e\n\n\u003ch3\u003eSpecification\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor:\u003c\/strong\u003e tinned copper to BS EN 60228 Class 5 (flexible), 203\/0.30 stranding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCores manufactured to:\u003c\/strong\u003e ISO 6722-1:2011 Class B, 105°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecified for installation to:\u003c\/strong\u003e BS EN ISO 13297:2021, \u003cem\u003eSmall craft. Electrical systems. Alternating and direct current installations\u003c\/em\u003e. Note that this standard replaced ISO 10133:2012, which is still quoted across most of this market and has been withdrawn\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross sectional area:\u003c\/strong\u003e 16mm² (nearest AWG equivalent 6)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 110A nominal, conditions not stated by the manufacturer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall diameter:\u003c\/strong\u003e 8.3mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor resistance:\u003c\/strong\u003e 1.24 mΩ\/m at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e approximately 0.2kg per metre\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColours:\u003c\/strong\u003e red and black\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical applications\u003c\/h3\u003e\n\u003cp\u003e30 to 50A DC-DC chargers, split charge and VSR runs, 1000W inverter at 12V on short runs, small battery bank interconnects, 3000W at 48V.\u003c\/p\u003e\n\n\u003ch3\u003eCurrent rating: what the manufacturer actually says\u003c\/h3\u003e\n\u003cp\u003eAMC publish \u003cstrong\u003e110A\u003c\/strong\u003e for this cable as a \u003cem\u003enominal\u003c\/em\u003e current rating, and they publish no conditions alongside it. Their datasheet says, in full: \"Nominal current amperage ratings are provided as a guide only, and can vary depending on the application, condition and environmental factors.\" There is no stated ambient temperature, no installation method and no bundling basis, on any size in the range.\u003c\/p\u003e\n\u003cp\u003eWe say so because the same number is quoted all over this market as though it were a rated ampacity, and it is not. The datasheet is linked at the foot of this page if you want to check us.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSo the derating below is ours, not AMC's.\u003c\/strong\u003e We treat their figure as a single unbundled cable in open air, because that is the usual convention for a table of this kind, and we apply bundling factors following ABYC E-11 practice, which is the most widely used published basis for DC conductor derating in small craft. It is engineering judgement applied to a guide figure, and we would rather show you the judgement than hide it.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eCondition\u003c\/th\u003e\n\u003cth\u003eFactor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSingle unbundled cable in open air (our assumed baseline)\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 to 3 cables bundled or in conduit\u003c\/td\u003e\n\u003ctd\u003e× 0.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 to 6 cables bundled\u003c\/td\u003e\n\u003ctd\u003e× 0.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7 to 24 cables bundled\u003c\/td\u003e\n\u003ctd\u003e× 0.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e25 or more cables bundled\u003c\/td\u003e\n\u003ctd\u003e× 0.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine space or other high ambient\u003c\/td\u003e\n\u003ctd\u003eDerate further, and size on volt drop as well\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThese ratings are considerably higher than BS 7671 would permit for the same conductor, because BS 7671 assumes a lower permitted conductor temperature and different installation methods. BS 7671 does not apply to small craft in any case: Regulation 110.2 excludes vessels covered by BS 8450. It is the right reference for a caravan or motor caravan, through Section 721. If you are used to BS 7671 tables, the difference is worth understanding rather than being surprised by.\u003c\/p\u003e\n\n\u003ch3\u003eVolt drop is usually what decides the size, not current\u003c\/h3\u003e\n\u003cp\u003eAt 12V a 3% volt drop budget is 0.36V in total, there and back. That almost always calls for a larger cable than the current rating alone would suggest. BS EN ISO 13297 permits up to 10% for general circuits and 3% for equipment vital to safety.\u003c\/p\u003e\n\u003cp\u003eWork it out properly with our \u003ca href=\"\/pages\/cable-size-calculator\"\u003ecable size calculator\u003c\/a\u003e, which checks current rating and volt drop independently and hands you a configured assembly at the end.\u003c\/p\u003e\n\n\u003ch3\u003eWhat goes with it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCopper tube terminals:\u003c\/strong\u003e 16mm² in M6, M8, M10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdhesive lined heat shrink:\u003c\/strong\u003e 19mm, sized to the lug barrel rather than the cable diameter\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eOr let us make it up for you\u003c\/h3\u003e\n\u003cp\u003eGive us the length and the stud size at each end and we will cut it, crimp it with matched DIN 22-series hexagonal dies, seal both ends with adhesive lined heat shrink, label it and send you a certificate of conformity with the reel batch number, the die code, the measured crimp dimension and the measured end-to-end resistance on it. \u003ca href=\"\/pages\/configurator\"\u003eConfigure an assembly\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eHow it is supplied\u003c\/h3\u003e\n\u003cp\u003eCut to length is supplied as one continuous piece: set the quantity to the number of metres you need. Coils are supplied on a reel. Cut lengths are made to order and are not returnable unless faulty.\u003c\/p\u003e\n\u003ch3\u003eDatasheet\u003c\/h3\u003e\n\u003cp\u003eEvery cable specification on this page comes from the manufacturer datasheet, and you can read it yourself: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0963\/0164\/6204\/files\/amc-oceanflex-tinned-copper-battery-cable-datasheet.pdf?v=1785877982\" target=\"_blank\" rel=\"noopener\"\u003edownload AMC Oceanflex tinned copper PVC battery cable (PDF)\u003c\/a\u003e. We host the file here rather than link to the manufacturer, so it stays available and stays the version our figures were taken from. The derating factors above are ours, not the manufacturer's.\u003c\/p\u003e","brand":"Cut \u0026 Crimp","offers":[{"title":"Red \/ Cut to length (per metre)","offer_id":57249069039996,"sku":"CC-TI16-R-001","price":5.94,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 5 metre coil","offer_id":57249069072764,"sku":"CC-TI16-R-005","price":28.81,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 10 metre coil","offer_id":57249069105532,"sku":"CC-TI16-R-010","price":56.42,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 25 metre coil","offer_id":57249069138300,"sku":"CC-TI16-R-025","price":135.13,"currency_code":"GBP","in_stock":true},{"title":"Black \/ Cut to length (per metre)","offer_id":57249069171068,"sku":"CC-TI16-B-001","price":5.94,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 5 metre coil","offer_id":57249069203836,"sku":"CC-TI16-B-005","price":28.81,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 10 metre coil","offer_id":57249069236604,"sku":"CC-TI16-B-010","price":56.42,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 25 metre coil","offer_id":57249069269372,"sku":"CC-TI16-B-025","price":135.13,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/0164\/6204\/files\/8-08505T-R.jpg?v=1785878281"},{"product_id":"tinned-battery-cable-25mm2","title":"Tinned Marine Battery Cable 25mm² 170A","description":"\u003cp\u003e\u003cstrong\u003eTinned copper flexible battery cable, 25mm², rated 170A.\u003c\/strong\u003e Fine-stranded, electrolytically tinned copper in a flexible PVC sheath. This is the cable to use anywhere it may see salt air, condensation, bilge water or road salt, which on a boat means everywhere.\u003c\/p\u003e\n\n\u003ch3\u003eWhy tinned\u003c\/h3\u003e\n\u003cp\u003ePlain copper corrodes from the strand surface inward, and it does it invisibly, underneath the lug where you cannot inspect it. The joint slowly gains resistance, then gets warm, then fails. Tinning puts a barrier on every individual strand. It costs a little more and it is the correct answer for marine, for a campervan engine bay or underfloor run, and for any off-grid installation that is not in a dry indoor cabinet.\u003c\/p\u003e\n\n\u003ch3\u003eSpecification\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor:\u003c\/strong\u003e tinned copper to BS EN 60228 Class 5 (flexible), 322\/0.30 stranding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCores manufactured to:\u003c\/strong\u003e ISO 6722-1:2011 Class B, 105°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecified for installation to:\u003c\/strong\u003e BS EN ISO 13297:2021, \u003cem\u003eSmall craft. Electrical systems. Alternating and direct current installations\u003c\/em\u003e. Note that this standard replaced ISO 10133:2012, which is still quoted across most of this market and has been withdrawn\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross sectional area:\u003c\/strong\u003e 25mm² (nearest AWG equivalent 4)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 170A nominal, conditions not stated by the manufacturer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall diameter:\u003c\/strong\u003e 10.1mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor resistance:\u003c\/strong\u003e 0.794 mΩ\/m at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e approximately 0.3kg per metre\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColours:\u003c\/strong\u003e red and black\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical applications\u003c\/h3\u003e\n\u003cp\u003eThe highest volume size across all three markets. 1200 to 1500W inverter at 12V, 50 to 60A DC-DC chargers, battery to busbar on 100 to 200Ah banks, engine starting on small diesels, 3000W at 24V, 5000W at 48V.\u003c\/p\u003e\n\n\u003ch3\u003eCurrent rating: what the manufacturer actually says\u003c\/h3\u003e\n\u003cp\u003eAMC publish \u003cstrong\u003e170A\u003c\/strong\u003e for this cable as a \u003cem\u003enominal\u003c\/em\u003e current rating, and they publish no conditions alongside it. Their datasheet says, in full: \"Nominal current amperage ratings are provided as a guide only, and can vary depending on the application, condition and environmental factors.\" There is no stated ambient temperature, no installation method and no bundling basis, on any size in the range.\u003c\/p\u003e\n\u003cp\u003eWe say so because the same number is quoted all over this market as though it were a rated ampacity, and it is not. The datasheet is linked at the foot of this page if you want to check us.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSo the derating below is ours, not AMC's.\u003c\/strong\u003e We treat their figure as a single unbundled cable in open air, because that is the usual convention for a table of this kind, and we apply bundling factors following ABYC E-11 practice, which is the most widely used published basis for DC conductor derating in small craft. It is engineering judgement applied to a guide figure, and we would rather show you the judgement than hide it.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eCondition\u003c\/th\u003e\n\u003cth\u003eFactor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSingle unbundled cable in open air (our assumed baseline)\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 to 3 cables bundled or in conduit\u003c\/td\u003e\n\u003ctd\u003e× 0.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 to 6 cables bundled\u003c\/td\u003e\n\u003ctd\u003e× 0.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7 to 24 cables bundled\u003c\/td\u003e\n\u003ctd\u003e× 0.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e25 or more cables bundled\u003c\/td\u003e\n\u003ctd\u003e× 0.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine space or other high ambient\u003c\/td\u003e\n\u003ctd\u003eDerate further, and size on volt drop as well\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThese ratings are considerably higher than BS 7671 would permit for the same conductor, because BS 7671 assumes a lower permitted conductor temperature and different installation methods. BS 7671 does not apply to small craft in any case: Regulation 110.2 excludes vessels covered by BS 8450. It is the right reference for a caravan or motor caravan, through Section 721. If you are used to BS 7671 tables, the difference is worth understanding rather than being surprised by.\u003c\/p\u003e\n\n\u003ch3\u003eVolt drop is usually what decides the size, not current\u003c\/h3\u003e\n\u003cp\u003eAt 12V a 3% volt drop budget is 0.36V in total, there and back. That almost always calls for a larger cable than the current rating alone would suggest. BS EN ISO 13297 permits up to 10% for general circuits and 3% for equipment vital to safety.\u003c\/p\u003e\n\u003cp\u003eWork it out properly with our \u003ca href=\"\/pages\/cable-size-calculator\"\u003ecable size calculator\u003c\/a\u003e, which checks current rating and volt drop independently and hands you a configured assembly at the end.\u003c\/p\u003e\n\n\u003ch3\u003eWhat goes with it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCopper tube terminals:\u003c\/strong\u003e 25mm² in M6, M8, M10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdhesive lined heat shrink:\u003c\/strong\u003e 19mm, sized to the lug barrel rather than the cable diameter\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eOr let us make it up for you\u003c\/h3\u003e\n\u003cp\u003eGive us the length and the stud size at each end and we will cut it, crimp it with matched DIN 22-series hexagonal dies, seal both ends with adhesive lined heat shrink, label it and send you a certificate of conformity with the reel batch number, the die code, the measured crimp dimension and the measured end-to-end resistance on it. \u003ca href=\"\/pages\/configurator\"\u003eConfigure an assembly\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eHow it is supplied\u003c\/h3\u003e\n\u003cp\u003eCut to length is supplied as one continuous piece: set the quantity to the number of metres you need. Coils are supplied on a reel. Cut lengths are made to order and are not returnable unless faulty.\u003c\/p\u003e\n\u003ch3\u003eDatasheet\u003c\/h3\u003e\n\u003cp\u003eEvery cable specification on this page comes from the manufacturer datasheet, and you can read it yourself: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0963\/0164\/6204\/files\/amc-oceanflex-tinned-copper-battery-cable-datasheet.pdf?v=1785877982\" target=\"_blank\" rel=\"noopener\"\u003edownload AMC Oceanflex tinned copper PVC battery cable (PDF)\u003c\/a\u003e. We host the file here rather than link to the manufacturer, so it stays available and stays the version our figures were taken from. The derating factors above are ours, not the manufacturer's.\u003c\/p\u003e","brand":"Cut \u0026 Crimp","offers":[{"title":"Red \/ Cut to length (per metre)","offer_id":57249069760892,"sku":"CC-TI25-R-001","price":9.3,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 5 metre coil","offer_id":57249069793660,"sku":"CC-TI25-R-005","price":45.11,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 10 metre coil","offer_id":57249069826428,"sku":"CC-TI25-R-010","price":88.34,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 25 metre coil","offer_id":57249069859196,"sku":"CC-TI25-R-025","price":211.57,"currency_code":"GBP","in_stock":true},{"title":"Black \/ Cut to length (per metre)","offer_id":57249069891964,"sku":"CC-TI25-B-001","price":9.3,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 5 metre coil","offer_id":57249069924732,"sku":"CC-TI25-B-005","price":45.11,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 10 metre coil","offer_id":57249069957500,"sku":"CC-TI25-B-010","price":88.34,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 25 metre coil","offer_id":57249069990268,"sku":"CC-TI25-B-025","price":211.57,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/0164\/6204\/files\/8-08525T-R.jpg?v=1785878426"},{"product_id":"tinned-battery-cable-35mm2","title":"Tinned Marine Battery Cable 35mm² 240A","description":"\u003cp\u003e\u003cstrong\u003eTinned copper flexible battery cable, 35mm², rated 240A.\u003c\/strong\u003e Fine-stranded, electrolytically tinned copper in a flexible PVC sheath. This is the cable to use anywhere it may see salt air, condensation, bilge water or road salt, which on a boat means everywhere.\u003c\/p\u003e\n\n\u003ch3\u003eWhy tinned\u003c\/h3\u003e\n\u003cp\u003ePlain copper corrodes from the strand surface inward, and it does it invisibly, underneath the lug where you cannot inspect it. The joint slowly gains resistance, then gets warm, then fails. Tinning puts a barrier on every individual strand. It costs a little more and it is the correct answer for marine, for a campervan engine bay or underfloor run, and for any off-grid installation that is not in a dry indoor cabinet.\u003c\/p\u003e\n\n\u003ch3\u003eSpecification\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor:\u003c\/strong\u003e tinned copper to BS EN 60228 Class 5 (flexible), 455\/0.30 stranding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCores manufactured to:\u003c\/strong\u003e ISO 6722-1:2011 Class B, 105°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecified for installation to:\u003c\/strong\u003e BS EN ISO 13297:2021, \u003cem\u003eSmall craft. Electrical systems. Alternating and direct current installations\u003c\/em\u003e. Note that this standard replaced ISO 10133:2012, which is still quoted across most of this market and has been withdrawn\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross sectional area:\u003c\/strong\u003e 35mm² (nearest AWG equivalent 2)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 240A nominal, conditions not stated by the manufacturer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall diameter:\u003c\/strong\u003e 11.8mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor resistance:\u003c\/strong\u003e 0.565 mΩ\/m at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e approximately 0.42kg per metre\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColours:\u003c\/strong\u003e red and black\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical applications\u003c\/h3\u003e\n\u003cp\u003e2000W inverter at 12V on short runs, 3000W at 24V, battery bank interconnects, alternator upgrades, bow thruster feeds on smaller craft.\u003c\/p\u003e\n\n\u003ch3\u003eCurrent rating: what the manufacturer actually says\u003c\/h3\u003e\n\u003cp\u003eAMC publish \u003cstrong\u003e240A\u003c\/strong\u003e for this cable as a \u003cem\u003enominal\u003c\/em\u003e current rating, and they publish no conditions alongside it. Their datasheet says, in full: \"Nominal current amperage ratings are provided as a guide only, and can vary depending on the application, condition and environmental factors.\" There is no stated ambient temperature, no installation method and no bundling basis, on any size in the range.\u003c\/p\u003e\n\u003cp\u003eWe say so because the same number is quoted all over this market as though it were a rated ampacity, and it is not. The datasheet is linked at the foot of this page if you want to check us.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSo the derating below is ours, not AMC's.\u003c\/strong\u003e We treat their figure as a single unbundled cable in open air, because that is the usual convention for a table of this kind, and we apply bundling factors following ABYC E-11 practice, which is the most widely used published basis for DC conductor derating in small craft. It is engineering judgement applied to a guide figure, and we would rather show you the judgement than hide it.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eCondition\u003c\/th\u003e\n\u003cth\u003eFactor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSingle unbundled cable in open air (our assumed baseline)\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 to 3 cables bundled or in conduit\u003c\/td\u003e\n\u003ctd\u003e× 0.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 to 6 cables bundled\u003c\/td\u003e\n\u003ctd\u003e× 0.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7 to 24 cables bundled\u003c\/td\u003e\n\u003ctd\u003e× 0.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e25 or more cables bundled\u003c\/td\u003e\n\u003ctd\u003e× 0.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine space or other high ambient\u003c\/td\u003e\n\u003ctd\u003eDerate further, and size on volt drop as well\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThese ratings are considerably higher than BS 7671 would permit for the same conductor, because BS 7671 assumes a lower permitted conductor temperature and different installation methods. BS 7671 does not apply to small craft in any case: Regulation 110.2 excludes vessels covered by BS 8450. It is the right reference for a caravan or motor caravan, through Section 721. If you are used to BS 7671 tables, the difference is worth understanding rather than being surprised by.\u003c\/p\u003e\n\n\u003ch3\u003eVolt drop is usually what decides the size, not current\u003c\/h3\u003e\n\u003cp\u003eAt 12V a 3% volt drop budget is 0.36V in total, there and back. That almost always calls for a larger cable than the current rating alone would suggest. BS EN ISO 13297 permits up to 10% for general circuits and 3% for equipment vital to safety.\u003c\/p\u003e\n\u003cp\u003eWork it out properly with our \u003ca href=\"\/pages\/cable-size-calculator\"\u003ecable size calculator\u003c\/a\u003e, which checks current rating and volt drop independently and hands you a configured assembly at the end.\u003c\/p\u003e\n\n\u003ch3\u003eWhat goes with it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCopper tube terminals:\u003c\/strong\u003e 35mm² in M6, M8, M10, M12\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdhesive lined heat shrink:\u003c\/strong\u003e 25.4mm, sized to the lug barrel rather than the cable diameter\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eOr let us make it up for you\u003c\/h3\u003e\n\u003cp\u003eGive us the length and the stud size at each end and we will cut it, crimp it with matched DIN 22-series hexagonal dies, seal both ends with adhesive lined heat shrink, label it and send you a certificate of conformity with the reel batch number, the die code, the measured crimp dimension and the measured end-to-end resistance on it. \u003ca href=\"\/pages\/configurator\"\u003eConfigure an assembly\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eHow it is supplied\u003c\/h3\u003e\n\u003cp\u003eCut to length is supplied as one continuous piece: set the quantity to the number of metres you need. Coils are supplied on a reel. Cut lengths are made to order and are not returnable unless faulty.\u003c\/p\u003e\n\u003ch3\u003eDatasheet\u003c\/h3\u003e\n\u003cp\u003eEvery cable specification on this page comes from the manufacturer datasheet, and you can read it yourself: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0963\/0164\/6204\/files\/amc-oceanflex-tinned-copper-battery-cable-datasheet.pdf?v=1785877982\" target=\"_blank\" rel=\"noopener\"\u003edownload AMC Oceanflex tinned copper PVC battery cable (PDF)\u003c\/a\u003e. We host the file here rather than link to the manufacturer, so it stays available and stays the version our figures were taken from. The derating factors above are ours, not the manufacturer's.\u003c\/p\u003e","brand":"Cut \u0026 Crimp","offers":[{"title":"Red \/ Cut to length (per metre)","offer_id":57249095090556,"sku":"CC-TI35-R-001","price":13.14,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 5 metre coil","offer_id":57249095123324,"sku":"CC-TI35-R-005","price":63.73,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 10 metre coil","offer_id":57249095156092,"sku":"CC-TI35-R-010","price":124.82,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 25 metre coil","offer_id":57249095188860,"sku":"CC-TI35-R-025","price":298.93,"currency_code":"GBP","in_stock":true},{"title":"Black \/ Cut to length (per metre)","offer_id":57249095221628,"sku":"CC-TI35-B-001","price":13.14,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 5 metre coil","offer_id":57249095254396,"sku":"CC-TI35-B-005","price":63.73,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 10 metre coil","offer_id":57249095287164,"sku":"CC-TI35-B-010","price":124.82,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 25 metre coil","offer_id":57249095319932,"sku":"CC-TI35-B-025","price":298.93,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/0164\/6204\/files\/8-08535T-R.jpg?v=1785879620"},{"product_id":"tinned-battery-cable-70mm2","title":"Tinned Marine Battery Cable 70mm² 485A","description":"\u003cp\u003e\u003cstrong\u003eTinned copper flexible battery cable, 70mm², rated 485A.\u003c\/strong\u003e Fine-stranded, electrolytically tinned copper in a flexible PVC sheath. This is the cable to use anywhere it may see salt air, condensation, bilge water or road salt, which on a boat means everywhere.\u003c\/p\u003e\n\n\u003ch3\u003eWhy tinned\u003c\/h3\u003e\n\u003cp\u003ePlain copper corrodes from the strand surface inward, and it does it invisibly, underneath the lug where you cannot inspect it. The joint slowly gains resistance, then gets warm, then fails. Tinning puts a barrier on every individual strand. It costs a little more and it is the correct answer for marine, for a campervan engine bay or underfloor run, and for any off-grid installation that is not in a dry indoor cabinet.\u003c\/p\u003e\n\n\u003ch3\u003eSpecification\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor:\u003c\/strong\u003e tinned copper to BS EN 60228 Class 5 (flexible), 912\/0.30 stranding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCores manufactured to:\u003c\/strong\u003e ISO 6722-1:2011 Class B, 105°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecified for installation to:\u003c\/strong\u003e BS EN ISO 13297:2021, \u003cem\u003eSmall craft. Electrical systems. Alternating and direct current installations\u003c\/em\u003e. Note that this standard replaced ISO 10133:2012, which is still quoted across most of this market and has been withdrawn\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross sectional area:\u003c\/strong\u003e 70mm² (nearest AWG equivalent 2\/0)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 485A nominal, conditions not stated by the manufacturer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall diameter:\u003c\/strong\u003e 15.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor resistance:\u003c\/strong\u003e 0.277 mΩ\/m at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e approximately 0.8kg per metre\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColours:\u003c\/strong\u003e red and black\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical applications\u003c\/h3\u003e\n\u003cp\u003e3000W inverter at 12V, large lithium bank interconnects, bow thrusters, marine main negative bus, alternator outputs above 150A.\u003c\/p\u003e\n\n\u003ch3\u003eCurrent rating: what the manufacturer actually says\u003c\/h3\u003e\n\u003cp\u003eAMC publish \u003cstrong\u003e485A\u003c\/strong\u003e for this cable as a \u003cem\u003enominal\u003c\/em\u003e current rating, and they publish no conditions alongside it. Their datasheet says, in full: \"Nominal current amperage ratings are provided as a guide only, and can vary depending on the application, condition and environmental factors.\" There is no stated ambient temperature, no installation method and no bundling basis, on any size in the range.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOne thing worth knowing before you go up a size.\u003c\/strong\u003e The 95mm² cable on the same datasheet is rated 500A: 36% more copper for 3% more current, which is not how conductors behave. We have queried it with AMC. Until they confirm it, do not assume that stepping from 70mm² to 95mm² buys you only 15A, because on the trend of the rest of the table it should buy considerably more. Talk to us if you are near that boundary.\u003c\/p\u003e\n\u003cp\u003eWe say all this because the same numbers are quoted all over this market as though they were rated ampacities, and they are not. The datasheet is linked at the foot of this page if you want to check us.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSo the derating below is ours, not AMC's.\u003c\/strong\u003e We treat their figure as a single unbundled cable in open air, because that is the usual convention for a table of this kind, and we apply bundling factors following ABYC E-11 practice, which is the most widely used published basis for DC conductor derating in small craft. It is engineering judgement applied to a guide figure, and we would rather show you the judgement than hide it.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eCondition\u003c\/th\u003e\n\u003cth\u003eFactor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSingle unbundled cable in open air (our assumed baseline)\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 to 3 cables bundled or in conduit\u003c\/td\u003e\n\u003ctd\u003e× 0.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 to 6 cables bundled\u003c\/td\u003e\n\u003ctd\u003e× 0.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7 to 24 cables bundled\u003c\/td\u003e\n\u003ctd\u003e× 0.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e25 or more cables bundled\u003c\/td\u003e\n\u003ctd\u003e× 0.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine space or other high ambient\u003c\/td\u003e\n\u003ctd\u003eDerate further, and size on volt drop as well\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThese ratings are considerably higher than BS 7671 would permit for the same conductor, because BS 7671 assumes a lower permitted conductor temperature and different installation methods. BS 7671 does not apply to small craft in any case: Regulation 110.2 excludes vessels covered by BS 8450. It is the right reference for a caravan or motor caravan, through Section 721. If you are used to BS 7671 tables, the difference is worth understanding rather than being surprised by.\u003c\/p\u003e\n\n\u003ch3\u003eVolt drop is usually what decides the size, not current\u003c\/h3\u003e\n\u003cp\u003eAt 12V a 3% volt drop budget is 0.36V in total, there and back. That almost always calls for a larger cable than the current rating alone would suggest. BS EN ISO 13297 permits up to 10% for general circuits and 3% for equipment vital to safety.\u003c\/p\u003e\n\u003cp\u003eWork it out properly with our \u003ca href=\"\/pages\/cable-size-calculator\"\u003ecable size calculator\u003c\/a\u003e, which checks current rating and volt drop independently and hands you a configured assembly at the end.\u003c\/p\u003e\n\n\u003ch3\u003eWhat goes with it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCopper tube terminals:\u003c\/strong\u003e 70mm² in M8, M10, M12\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdhesive lined heat shrink:\u003c\/strong\u003e 39mm, sized to the lug barrel rather than the cable diameter\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eOr let us make it up for you\u003c\/h3\u003e\n\u003cp\u003eGive us the length and the stud size at each end and we will cut it, crimp it with matched DIN 22-series hexagonal dies, seal both ends with adhesive lined heat shrink, label it and send you a certificate of conformity with the reel batch number, the die code, the measured crimp dimension and the measured end-to-end resistance on it. \u003ca href=\"\/pages\/configurator\"\u003eConfigure an assembly\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eHow it is supplied\u003c\/h3\u003e\n\u003cp\u003eCut to length is supplied as one continuous piece: set the quantity to the number of metres you need. Coils are supplied on a reel. Cut lengths are made to order and are not returnable unless faulty.\u003c\/p\u003e\n\u003ch3\u003eDatasheet\u003c\/h3\u003e\n\u003cp\u003eEvery cable specification on this page comes from the manufacturer datasheet, and you can read it yourself: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0963\/0164\/6204\/files\/amc-oceanflex-tinned-copper-battery-cable-datasheet.pdf?v=1785877982\" target=\"_blank\" rel=\"noopener\"\u003edownload AMC Oceanflex tinned copper PVC battery cable (PDF)\u003c\/a\u003e. We host the file here rather than link to the manufacturer, so it stays available and stays the version our figures were taken from. The derating factors above are ours, not the manufacturer's.\u003c\/p\u003e","brand":"Cut \u0026 Crimp","offers":[{"title":"Red \/ Cut to length (per metre)","offer_id":57249096434044,"sku":"CC-TI70-R-001","price":25.5,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 5 metre coil","offer_id":57249096466812,"sku":"CC-TI70-R-005","price":123.67,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 10 metre coil","offer_id":57249096499580,"sku":"CC-TI70-R-010","price":242.26,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 25 metre coil","offer_id":57249096532348,"sku":"CC-TI70-R-025","price":580.13,"currency_code":"GBP","in_stock":true},{"title":"Black \/ Cut to length (per metre)","offer_id":57249096565116,"sku":"CC-TI70-B-001","price":25.5,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 5 metre coil","offer_id":57249096597884,"sku":"CC-TI70-B-005","price":123.67,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 10 metre coil","offer_id":57249096630652,"sku":"CC-TI70-B-010","price":242.26,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 25 metre coil","offer_id":57249096663420,"sku":"CC-TI70-B-025","price":580.13,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/0164\/6204\/files\/8-08575T-BK.jpg?v=1785879628"},{"product_id":"plain-battery-cable-16mm2","title":"Plain Copper Battery Cable 16mm² 110A","description":"\u003cp\u003e\u003cstrong\u003ePlain copper flexible battery cable, 16mm², rated 110A.\u003c\/strong\u003e The same fine-stranded flexible construction as our tinned range, with an untinned copper conductor. Correct and cheaper for dry indoor runs. Not the right choice anywhere it may see damp.\u003c\/p\u003e\n\n\u003ch3\u003eWhen plain is the right call, and when it is not\u003c\/h3\u003e\n\u003cp\u003ePlain copper is fine inside a sealed, dry campervan cabin or an indoor battery cabinet. It is the wrong choice in a bilge, an engine bay, a wheel arch, an outdoor shed or anywhere exposed to salt air, because corrosion wicks up the strands under the lug where you cannot see it.\u003c\/p\u003e\n\u003cp\u003eWe are straight about this because the price difference is small. At 16mm² the tinned version costs only a little more, and at 50mm² and above the difference from our supplier is between 4% and 8%, which is why we do not stock plain copper in the larger sizes at all. If you are anywhere near water, buy tinned.\u003c\/p\u003e\n\n\u003ch3\u003eSpecification\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor:\u003c\/strong\u003e plain (untinned) copper to BS EN 60228 Class 5 (flexible)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross sectional area:\u003c\/strong\u003e 16mm² (nearest AWG equivalent 6)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 110A nominal, conditions not stated, and see the note under Datasheet below\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall diameter:\u003c\/strong\u003e 8.3mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor resistance:\u003c\/strong\u003e 1.21 mΩ\/m at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e approximately 0.2kg per metre\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColours:\u003c\/strong\u003e red and black\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThis is not welding cable\u003c\/h3\u003e\n\u003cp\u003eA lot of what is sold as battery cable in this country is welding cable, or unspecified PVC single core sold under both names at once. The honest arguments against using it are these. Genuine welding cable to H01N2-D is rated \u003cstrong\u003e100V\u003c\/strong\u003e, not 600\/1000V. Its current ratings are quoted on \u003cstrong\u003eduty cycle\u003c\/strong\u003e rather than continuously, so a 25mm² cable advertised at 300A is a 35% duty cycle figure and only 180A continuous. It is plain copper. Its insulation is rated 85°C rather than 105°C, and UV resistance is not specified.\u003c\/p\u003e\n\u003cp\u003eWhat we will not tell you is that welding cable is not oil resistant, because it is: the H01N2-D specification explicitly covers resistance to oils, acids, fats and petrols. That claim is repeated all over the internet and it is wrong.\u003c\/p\u003e\n\n\u003ch3\u003eTypical applications\u003c\/h3\u003e\n\u003cp\u003e30 to 50A DC-DC chargers, split charge and VSR runs, 1000W inverter at 12V on short runs, small battery bank interconnects, 3000W at 48V.\u003c\/p\u003e\n\n\u003ch3\u003eCurrent rating: what the manufacturer actually says\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eFor this size, less than we would like.\u003c\/strong\u003e AMC's datasheet for the plain copper range starts at 25mm² and does not include a 16mm² row at all. The 110A figure is what our supplier lists for this part, and we have asked AMC to confirm it in writing. Of every number on this page it is the least well supported, so size on volt drop and leave yourself margin.\u003c\/p\u003e\n\u003cp\u003eWhere AMC do publish current ratings, they publish no conditions alongside them. Their datasheet says, in full: \"Nominal current amperage ratings are provided as a guide only, and can vary depending on the application, condition and environmental factors.\" No ambient temperature, no installation method, no bundling basis. The same numbers are quoted across this market as though they were rated ampacities, and they are not.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSo the derating below is ours, not AMC's.\u003c\/strong\u003e We treat the figure as a single unbundled cable in open air, because that is the usual convention for a table of this kind, and we apply bundling factors following ABYC E-11 practice, which is the most widely used published basis for DC conductor derating in small craft. It is engineering judgement applied to a guide figure, and we would rather show you the judgement than hide it.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eCondition\u003c\/th\u003e\n\u003cth\u003eFactor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSingle unbundled cable in open air (our assumed baseline)\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 to 3 cables bundled or in conduit\u003c\/td\u003e\n\u003ctd\u003e× 0.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 to 6 cables bundled\u003c\/td\u003e\n\u003ctd\u003e× 0.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7 to 24 cables bundled\u003c\/td\u003e\n\u003ctd\u003e× 0.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e25 or more cables bundled\u003c\/td\u003e\n\u003ctd\u003e× 0.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine space or other high ambient\u003c\/td\u003e\n\u003ctd\u003eDerate further, and size on volt drop as well\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThese ratings are considerably higher than BS 7671 would permit for the same conductor, because BS 7671 assumes a lower permitted conductor temperature and different installation methods. BS 7671 does not apply to small craft in any case: Regulation 110.2 excludes vessels covered by BS 8450. It is the right reference for a caravan or motor caravan, through Section 721. If you are used to BS 7671 tables, the difference is worth understanding rather than being surprised by.\u003c\/p\u003e\n\n\u003ch3\u003eVolt drop is usually what decides the size, not current\u003c\/h3\u003e\n\u003cp\u003eAt 12V a 3% volt drop budget is 0.36V in total, there and back. That almost always calls for a larger cable than the current rating alone would suggest. BS EN ISO 13297 permits up to 10% for general circuits and 3% for equipment vital to safety.\u003c\/p\u003e\n\u003cp\u003eWork it out properly with our \u003ca href=\"\/pages\/cable-size-calculator\"\u003ecable size calculator\u003c\/a\u003e, which checks current rating and volt drop independently and hands you a configured assembly at the end.\u003c\/p\u003e\n\n\u003ch3\u003eWhat goes with it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCopper tube terminals:\u003c\/strong\u003e 16mm² in M6, M8, M10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdhesive lined heat shrink:\u003c\/strong\u003e 19mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDatasheet\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer datasheet for this range is here: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0963\/0164\/6204\/files\/amc-pvc-flexible-battery-starter-cable-datasheet.pdf?v=1785877982\" target=\"_blank\" rel=\"noopener\"\u003edownload AMC PVC flexible battery and starter cable (PDF)\u003c\/a\u003e. We host the file here rather than link to the manufacturer, so it stays available and stays the version our figures were taken from.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRead it and you will find the table starts at 25mm². There is no 16mm² row.\u003c\/strong\u003e We would rather tell you that than let you find it yourself. For this size the conductor resistance of 1.21 mΩ\/m is the BS EN 60228 Class 5 maximum for plain copper at 16mm², which is the conductor standard AMC build to and is a published figure you can check independently. The 110A rating and the 8.3mm diameter are our supplier's listed values for this part, and they are with AMC for written confirmation. The derating factors above are ours, not the manufacturer's.\u003c\/p\u003e","brand":"Cut \u0026 Crimp","offers":[{"title":"Red \/ Cut to length (per metre)","offer_id":57249097286012,"sku":"CC-PL16-R-001","price":5.22,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 5 metre coil","offer_id":57249097318780,"sku":"CC-PL16-R-005","price":25.32,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 10 metre coil","offer_id":57249097351548,"sku":"CC-PL16-R-010","price":49.58,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 25 metre coil","offer_id":57249097384316,"sku":"CC-PL16-R-025","price":118.75,"currency_code":"GBP","in_stock":true},{"title":"Black \/ Cut to length (per metre)","offer_id":57249097417084,"sku":"CC-PL16-B-001","price":5.22,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 5 metre coil","offer_id":57249097449852,"sku":"CC-PL16-B-005","price":25.32,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 10 metre coil","offer_id":57249097482620,"sku":"CC-PL16-B-010","price":49.58,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 25 metre coil","offer_id":57249097515388,"sku":"CC-PL16-B-025","price":118.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/0164\/6204\/files\/8-00501-R.jpg?v=1785879633"},{"product_id":"tinned-battery-cable-50mm2","title":"Tinned Marine Battery Cable 50mm² 345A","description":"\u003cp\u003e\u003cstrong\u003eTinned copper flexible battery cable, 50mm², rated 345A.\u003c\/strong\u003e Fine-stranded, electrolytically tinned copper in a flexible PVC sheath. This is the cable to use anywhere it may see salt air, condensation, bilge water or road salt, which on a boat means everywhere.\u003c\/p\u003e\n\n\u003ch3\u003eWhy tinned\u003c\/h3\u003e\n\u003cp\u003ePlain copper corrodes from the strand surface inward, and it does it invisibly, underneath the lug where you cannot inspect it. The joint slowly gains resistance, then gets warm, then fails. Tinning puts a barrier on every individual strand. It costs a little more and it is the correct answer for marine, for a campervan engine bay or underfloor run, and for any off-grid installation that is not in a dry indoor cabinet.\u003c\/p\u003e\n\n\u003ch3\u003eSpecification\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor:\u003c\/strong\u003e tinned copper to BS EN 60228 Class 5 (flexible), 637\/0.30 stranding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCores manufactured to:\u003c\/strong\u003e ISO 6722-1:2011 Class B, 105°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecified for installation to:\u003c\/strong\u003e BS EN ISO 13297:2021, \u003cem\u003eSmall craft. Electrical systems. Alternating and direct current installations\u003c\/em\u003e. Note that this standard replaced ISO 10133:2012, which is still quoted across most of this market and has been withdrawn\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross sectional area:\u003c\/strong\u003e 50mm² (nearest AWG equivalent 1)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 345A nominal, conditions not stated by the manufacturer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall diameter:\u003c\/strong\u003e 13.3mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor resistance:\u003c\/strong\u003e 0.393 mΩ\/m at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e approximately 0.58kg per metre\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColours:\u003c\/strong\u003e red and black\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical applications\u003c\/h3\u003e\n\u003cp\u003e2000W at 12V properly, 2500 to 3000W at 12V on short runs, main battery to Lynx or busbar on lithium banks, windlass feeds, marine engine starting.\u003c\/p\u003e\n\n\u003ch3\u003eCurrent rating: what the manufacturer actually says\u003c\/h3\u003e\n\u003cp\u003eAMC publish \u003cstrong\u003e345A\u003c\/strong\u003e for this cable as a \u003cem\u003enominal\u003c\/em\u003e current rating, and they publish no conditions alongside it. Their datasheet says, in full: \"Nominal current amperage ratings are provided as a guide only, and can vary depending on the application, condition and environmental factors.\" There is no stated ambient temperature, no installation method and no bundling basis, on any size in the range.\u003c\/p\u003e\n\u003cp\u003eWe say so because the same number is quoted all over this market as though it were a rated ampacity, and it is not. The datasheet is linked at the foot of this page if you want to check us.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSo the derating below is ours, not AMC's.\u003c\/strong\u003e We treat their figure as a single unbundled cable in open air, because that is the usual convention for a table of this kind, and we apply bundling factors following ABYC E-11 practice, which is the most widely used published basis for DC conductor derating in small craft. It is engineering judgement applied to a guide figure, and we would rather show you the judgement than hide it.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eCondition\u003c\/th\u003e\n\u003cth\u003eFactor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSingle unbundled cable in open air (our assumed baseline)\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 to 3 cables bundled or in conduit\u003c\/td\u003e\n\u003ctd\u003e× 0.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 to 6 cables bundled\u003c\/td\u003e\n\u003ctd\u003e× 0.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7 to 24 cables bundled\u003c\/td\u003e\n\u003ctd\u003e× 0.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e25 or more cables bundled\u003c\/td\u003e\n\u003ctd\u003e× 0.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine space or other high ambient\u003c\/td\u003e\n\u003ctd\u003eDerate further, and size on volt drop as well\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThese ratings are considerably higher than BS 7671 would permit for the same conductor, because BS 7671 assumes a lower permitted conductor temperature and different installation methods. BS 7671 does not apply to small craft in any case: Regulation 110.2 excludes vessels covered by BS 8450. It is the right reference for a caravan or motor caravan, through Section 721. If you are used to BS 7671 tables, the difference is worth understanding rather than being surprised by.\u003c\/p\u003e\n\n\u003ch3\u003eVolt drop is usually what decides the size, not current\u003c\/h3\u003e\n\u003cp\u003eAt 12V a 3% volt drop budget is 0.36V in total, there and back. That almost always calls for a larger cable than the current rating alone would suggest. BS EN ISO 13297 permits up to 10% for general circuits and 3% for equipment vital to safety.\u003c\/p\u003e\n\u003cp\u003eWork it out properly with our \u003ca href=\"\/pages\/cable-size-calculator\"\u003ecable size calculator\u003c\/a\u003e, which checks current rating and volt drop independently and hands you a configured assembly at the end.\u003c\/p\u003e\n\n\u003ch3\u003eWhat goes with it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCopper tube terminals:\u003c\/strong\u003e 50mm² in M6, M8, M10, M12\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdhesive lined heat shrink:\u003c\/strong\u003e 25.4mm, sized to the lug barrel rather than the cable diameter\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eOr let us make it up for you\u003c\/h3\u003e\n\u003cp\u003eGive us the length and the stud size at each end and we will cut it, crimp it with matched DIN 22-series hexagonal dies, seal both ends with adhesive lined heat shrink, label it and send you a certificate of conformity with the reel batch number, the die code, the measured crimp dimension and the measured end-to-end resistance on it. \u003ca href=\"\/pages\/configurator\"\u003eConfigure an assembly\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eHow it is supplied\u003c\/h3\u003e\n\u003cp\u003eCut to length is supplied as one continuous piece: set the quantity to the number of metres you need. Coils are supplied on a reel. Cut lengths are made to order and are not returnable unless faulty.\u003c\/p\u003e\n\u003ch3\u003eDatasheet\u003c\/h3\u003e\n\u003cp\u003eEvery cable specification on this page comes from the manufacturer datasheet, and you can read it yourself: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0963\/0164\/6204\/files\/amc-oceanflex-tinned-copper-battery-cable-datasheet.pdf?v=1785877982\" target=\"_blank\" rel=\"noopener\"\u003edownload AMC Oceanflex tinned copper PVC battery cable (PDF)\u003c\/a\u003e. We host the file here rather than link to the manufacturer, so it stays available and stays the version our figures were taken from. The derating factors above are ours, not the manufacturer's.\u003c\/p\u003e","brand":"Cut \u0026 Crimp","offers":[{"title":"Red \/ Cut to length (per metre)","offer_id":57249099678076,"sku":"CC-TI50-R-001","price":18.3,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 5 metre coil","offer_id":57249099710844,"sku":"CC-TI50-R-005","price":88.75,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 10 metre coil","offer_id":57249099743612,"sku":"CC-TI50-R-010","price":173.86,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 25 metre coil","offer_id":57249099776380,"sku":"CC-TI50-R-025","price":416.33,"currency_code":"GBP","in_stock":true},{"title":"Black \/ Cut to length (per metre)","offer_id":57249099809148,"sku":"CC-TI50-B-001","price":18.3,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 5 metre coil","offer_id":57249099841916,"sku":"CC-TI50-B-005","price":88.75,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 10 metre coil","offer_id":57249099874684,"sku":"CC-TI50-B-010","price":173.86,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 25 metre coil","offer_id":57249099907452,"sku":"CC-TI50-B-025","price":416.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/0164\/6204\/files\/8-08555T-R.jpg?v=1785879669"},{"product_id":"tinned-battery-cable-95mm2","title":"Tinned Marine Battery Cable 95mm² 500A","description":"\u003cp\u003e\u003cstrong\u003eTinned copper flexible battery cable, 95mm², rated 500A.\u003c\/strong\u003e Fine-stranded, electrolytically tinned copper in a flexible PVC sheath. This is the cable to use anywhere it may see salt air, condensation, bilge water or road salt, which on a boat means everywhere.\u003c\/p\u003e\n\n\u003ch3\u003eWhy tinned\u003c\/h3\u003e\n\u003cp\u003ePlain copper corrodes from the strand surface inward, and it does it invisibly, underneath the lug where you cannot inspect it. The joint slowly gains resistance, then gets warm, then fails. Tinning puts a barrier on every individual strand. It costs a little more and it is the correct answer for marine, for a campervan engine bay or underfloor run, and for any off-grid installation that is not in a dry indoor cabinet.\u003c\/p\u003e\n\n\u003ch3\u003eSpecification\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor:\u003c\/strong\u003e tinned copper to BS EN 60228 Class 5 (flexible), 684\/0.40 stranding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCores manufactured to:\u003c\/strong\u003e ISO 6722-1:2011 Class B, 105°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecified for installation to:\u003c\/strong\u003e BS EN ISO 13297:2021, \u003cem\u003eSmall craft. Electrical systems. Alternating and direct current installations\u003c\/em\u003e. Note that this standard replaced ISO 10133:2012, which is still quoted across most of this market and has been withdrawn\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross sectional area:\u003c\/strong\u003e 95mm² (nearest AWG equivalent 3\/0)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 500A nominal, conditions not stated by the manufacturer, and see the note below\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall diameter:\u003c\/strong\u003e 17.9mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor resistance:\u003c\/strong\u003e 0.21 mΩ\/m at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e approximately 1.08kg per metre\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColours:\u003c\/strong\u003e red and black\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical applications\u003c\/h3\u003e\n\u003cp\u003e3000W and above at 12V, twin engine marine main feeds, large off-grid inverter and charger installations. At this point it is usually worth moving the system to 24V or 48V.\u003c\/p\u003e\n\n\u003ch3\u003eCurrent rating: what the manufacturer actually says\u003c\/h3\u003e\n\u003cp\u003eAMC publish \u003cstrong\u003e500A\u003c\/strong\u003e for this cable as a \u003cem\u003enominal\u003c\/em\u003e current rating, and they publish no conditions alongside it. Their datasheet says, in full: \"Nominal current amperage ratings are provided as a guide only, and can vary depending on the application, condition and environmental factors.\" There is no stated ambient temperature, no installation method and no bundling basis, on any size in the range.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOn this size in particular, treat the figure with caution.\u003c\/strong\u003e The 70mm² cable on the same datasheet is rated 485A. This one has 36% more copper and is rated 3% higher, which is not how conductors behave, and the trend across the rest of the table would put it nearer 580 to 600A. We have queried it with AMC and until they confirm it we will not size a circuit on the difference between 485A and 500A. If you are near that boundary, go up a size or talk to us.\u003c\/p\u003e\n\u003cp\u003eWe say all this because the same number is quoted all over this market as though it were a rated ampacity, and it is not. The datasheet is linked at the foot of this page if you want to check us.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSo the derating below is ours, not AMC's.\u003c\/strong\u003e We treat their figure as a single unbundled cable in open air, because that is the usual convention for a table of this kind, and we apply bundling factors following ABYC E-11 practice, which is the most widely used published basis for DC conductor derating in small craft. It is engineering judgement applied to a guide figure, and we would rather show you the judgement than hide it.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eCondition\u003c\/th\u003e\n\u003cth\u003eFactor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSingle unbundled cable in open air (our assumed baseline)\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 to 3 cables bundled or in conduit\u003c\/td\u003e\n\u003ctd\u003e× 0.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 to 6 cables bundled\u003c\/td\u003e\n\u003ctd\u003e× 0.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7 to 24 cables bundled\u003c\/td\u003e\n\u003ctd\u003e× 0.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e25 or more cables bundled\u003c\/td\u003e\n\u003ctd\u003e× 0.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine space or other high ambient\u003c\/td\u003e\n\u003ctd\u003eDerate further, and size on volt drop as well\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThese ratings are considerably higher than BS 7671 would permit for the same conductor, because BS 7671 assumes a lower permitted conductor temperature and different installation methods. BS 7671 does not apply to small craft in any case: Regulation 110.2 excludes vessels covered by BS 8450. It is the right reference for a caravan or motor caravan, through Section 721. If you are used to BS 7671 tables, the difference is worth understanding rather than being surprised by.\u003c\/p\u003e\n\n\u003ch3\u003eVolt drop is usually what decides the size, not current\u003c\/h3\u003e\n\u003cp\u003eAt 12V a 3% volt drop budget is 0.36V in total, there and back. That almost always calls for a larger cable than the current rating alone would suggest. BS EN ISO 13297 permits up to 10% for general circuits and 3% for equipment vital to safety.\u003c\/p\u003e\n\u003cp\u003eWork it out properly with our \u003ca href=\"\/pages\/cable-size-calculator\"\u003ecable size calculator\u003c\/a\u003e, which checks current rating and volt drop independently and hands you a configured assembly at the end.\u003c\/p\u003e\n\n\u003ch3\u003eWhat goes with it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCopper tube terminals:\u003c\/strong\u003e 95mm² in M8, M10, M12\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdhesive lined heat shrink:\u003c\/strong\u003e 39mm, sized to the lug barrel rather than the cable diameter\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eOr let us make it up for you\u003c\/h3\u003e\n\u003cp\u003eGive us the length and the stud size at each end and we will cut it, crimp it with matched DIN 22-series hexagonal dies, seal both ends with adhesive lined heat shrink, label it and send you a certificate of conformity with the reel batch number, the die code, the measured crimp dimension and the measured end-to-end resistance on it. \u003ca href=\"\/pages\/configurator\"\u003eConfigure an assembly\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eHow it is supplied\u003c\/h3\u003e\n\u003cp\u003eCut to length is supplied as one continuous piece: set the quantity to the number of metres you need. Coils are supplied on a reel. Cut lengths are made to order and are not returnable unless faulty.\u003c\/p\u003e\n\u003ch3\u003eDatasheet\u003c\/h3\u003e\n\u003cp\u003eEvery cable specification on this page comes from the manufacturer datasheet, and you can read it yourself: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0963\/0164\/6204\/files\/amc-oceanflex-tinned-copper-battery-cable-datasheet.pdf?v=1785877982\" target=\"_blank\" rel=\"noopener\"\u003edownload AMC Oceanflex tinned copper PVC battery cable (PDF)\u003c\/a\u003e. We host the file here rather than link to the manufacturer, so it stays available and stays the version our figures were taken from. The derating factors above are ours, not the manufacturer's.\u003c\/p\u003e","brand":"Cut \u0026 Crimp","offers":[{"title":"Red \/ Cut to length (per metre)","offer_id":57249100235132,"sku":"CC-TI95-R-001","price":34.74,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 5 metre coil","offer_id":57249100267900,"sku":"CC-TI95-R-005","price":168.49,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 10 metre coil","offer_id":57249100300668,"sku":"CC-TI95-R-010","price":330.02,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 25 metre coil","offer_id":57249100333436,"sku":"CC-TI95-R-025","price":790.33,"currency_code":"GBP","in_stock":true},{"title":"Black \/ Cut to length (per metre)","offer_id":57249100366204,"sku":"CC-TI95-B-001","price":34.74,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 5 metre coil","offer_id":57249100398972,"sku":"CC-TI95-B-005","price":168.49,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 10 metre coil","offer_id":57249100431740,"sku":"CC-TI95-B-010","price":330.02,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 25 metre coil","offer_id":57249100464508,"sku":"CC-TI95-B-025","price":790.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/0164\/6204\/files\/8-08593T-R.jpg?v=1785879679"},{"product_id":"plain-battery-cable-25mm2","title":"Plain Copper Battery Cable 25mm² 170A","description":"\u003cp\u003e\u003cstrong\u003ePlain copper flexible battery cable, 25mm², rated 170A.\u003c\/strong\u003e The same fine-stranded flexible construction as our tinned range, with an untinned copper conductor. Correct and cheaper for dry indoor runs. Not the right choice anywhere it may see damp.\u003c\/p\u003e\n\n\u003ch3\u003eWhen plain is the right call, and when it is not\u003c\/h3\u003e\n\u003cp\u003ePlain copper is fine inside a sealed, dry campervan cabin or an indoor battery cabinet. It is the wrong choice in a bilge, an engine bay, a wheel arch, an outdoor shed or anywhere exposed to salt air, because corrosion wicks up the strands under the lug where you cannot see it.\u003c\/p\u003e\n\u003cp\u003eWe are straight about this because the price difference is small. At 25mm² the tinned version costs only a little more, and at 50mm² and above the difference from our supplier is between 4% and 8%, which is why we do not stock plain copper in the larger sizes at all. If you are anywhere near water, buy tinned.\u003c\/p\u003e\n\n\u003ch3\u003eSpecification\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor:\u003c\/strong\u003e plain (untinned) copper to BS EN 60228 Class 5 (flexible), 196\/0.40 stranding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross sectional area:\u003c\/strong\u003e 25mm² (nearest AWG equivalent 4)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 170A nominal, conditions not stated by the manufacturer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall diameter:\u003c\/strong\u003e 9.7mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor resistance:\u003c\/strong\u003e 0.80 mΩ\/m at 20°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e approximately 0.3kg per metre\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColours:\u003c\/strong\u003e red and black\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThis is not welding cable\u003c\/h3\u003e\n\u003cp\u003eA lot of what is sold as battery cable in this country is welding cable, or unspecified PVC single core sold under both names at once. The honest arguments against using it are these. Genuine welding cable to H01N2-D is rated \u003cstrong\u003e100V\u003c\/strong\u003e, not 600\/1000V. Its current ratings are quoted on \u003cstrong\u003eduty cycle\u003c\/strong\u003e rather than continuously, so a 25mm² cable advertised at 300A is a 35% duty cycle figure and only 180A continuous. It is plain copper. Its insulation is rated 85°C rather than 105°C, and UV resistance is not specified.\u003c\/p\u003e\n\u003cp\u003eWhat we will not tell you is that welding cable is not oil resistant, because it is: the H01N2-D specification explicitly covers resistance to oils, acids, fats and petrols. That claim is repeated all over the internet and it is wrong.\u003c\/p\u003e\n\n\u003ch3\u003eTypical applications\u003c\/h3\u003e\n\u003cp\u003eThe highest volume size across all three markets. 1200 to 1500W inverter at 12V, 50 to 60A DC-DC chargers, battery to busbar on 100 to 200Ah banks, engine starting on small diesels, 3000W at 24V, 5000W at 48V.\u003c\/p\u003e\n\n\u003ch3\u003eCurrent rating: what the manufacturer actually says\u003c\/h3\u003e\n\u003cp\u003eAMC publish \u003cstrong\u003e170A\u003c\/strong\u003e for this cable as a \u003cem\u003enominal\u003c\/em\u003e current rating, and they publish no conditions alongside it. Their datasheet says, in full: \"Nominal current amperage ratings are provided as a guide only, and can vary depending on the application, condition and environmental factors.\" There is no stated ambient temperature, no installation method and no bundling basis, on any size in the range.\u003c\/p\u003e\n\u003cp\u003eWe say so because the same number is quoted all over this market as though it were a rated ampacity, and it is not. The datasheet is linked at the foot of this page if you want to check us.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSo the derating below is ours, not AMC's.\u003c\/strong\u003e We treat their figure as a single unbundled cable in open air, because that is the usual convention for a table of this kind, and we apply bundling factors following ABYC E-11 practice, which is the most widely used published basis for DC conductor derating in small craft. It is engineering judgement applied to a guide figure, and we would rather show you the judgement than hide it.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eCondition\u003c\/th\u003e\n\u003cth\u003eFactor\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSingle unbundled cable in open air (our assumed baseline)\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 to 3 cables bundled or in conduit\u003c\/td\u003e\n\u003ctd\u003e× 0.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 to 6 cables bundled\u003c\/td\u003e\n\u003ctd\u003e× 0.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7 to 24 cables bundled\u003c\/td\u003e\n\u003ctd\u003e× 0.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e25 or more cables bundled\u003c\/td\u003e\n\u003ctd\u003e× 0.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine space or other high ambient\u003c\/td\u003e\n\u003ctd\u003eDerate further, and size on volt drop as well\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThese ratings are considerably higher than BS 7671 would permit for the same conductor, because BS 7671 assumes a lower permitted conductor temperature and different installation methods. BS 7671 does not apply to small craft in any case: Regulation 110.2 excludes vessels covered by BS 8450. It is the right reference for a caravan or motor caravan, through Section 721. If you are used to BS 7671 tables, the difference is worth understanding rather than being surprised by.\u003c\/p\u003e\n\n\u003ch3\u003eVolt drop is usually what decides the size, not current\u003c\/h3\u003e\n\u003cp\u003eAt 12V a 3% volt drop budget is 0.36V in total, there and back. That almost always calls for a larger cable than the current rating alone would suggest. BS EN ISO 13297 permits up to 10% for general circuits and 3% for equipment vital to safety.\u003c\/p\u003e\n\u003cp\u003eWork it out properly with our \u003ca href=\"\/pages\/cable-size-calculator\"\u003ecable size calculator\u003c\/a\u003e, which checks current rating and volt drop independently and hands you a configured assembly at the end.\u003c\/p\u003e\n\n\u003ch3\u003eWhat goes with it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCopper tube terminals:\u003c\/strong\u003e 25mm² in M6, M8, M10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdhesive lined heat shrink:\u003c\/strong\u003e 19mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDatasheet\u003c\/h3\u003e\n\u003cp\u003eEvery cable specification on this page comes from the manufacturer datasheet, and you can read it yourself: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0963\/0164\/6204\/files\/amc-pvc-flexible-battery-starter-cable-datasheet.pdf?v=1785877982\" target=\"_blank\" rel=\"noopener\"\u003edownload AMC PVC flexible battery and starter cable (PDF)\u003c\/a\u003e. We host the file here rather than link to the manufacturer, so it stays available and stays the version our figures were taken from. The derating factors above are ours, not the manufacturer's.\u003c\/p\u003e","brand":"Cut \u0026 Crimp","offers":[{"title":"Red \/ Cut to length (per metre)","offer_id":57249100824956,"sku":"CC-PL25-R-001","price":7.92,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 5 metre coil","offer_id":57249100857724,"sku":"CC-PL25-R-005","price":38.41,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 10 metre coil","offer_id":57249100890492,"sku":"CC-PL25-R-010","price":75.24,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 25 metre coil","offer_id":57249100923260,"sku":"CC-PL25-R-025","price":180.18,"currency_code":"GBP","in_stock":true},{"title":"Black \/ Cut to length (per metre)","offer_id":57249100956028,"sku":"CC-PL25-B-001","price":7.92,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 5 metre coil","offer_id":57249100988796,"sku":"CC-PL25-B-005","price":38.41,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 10 metre coil","offer_id":57249101021564,"sku":"CC-PL25-B-010","price":75.24,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 25 metre coil","offer_id":57249101054332,"sku":"CC-PL25-B-025","price":180.18,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/0164\/6204\/files\/8-00553-R.jpg?v=1785879684"}],"url":"https:\/\/cutandcrimp.co.uk\/collections\/battery-cable.oembed","provider":"Cut \u0026 Crimp","version":"1.0","type":"link"}