{"product_id":"key-4bs-20-29mm2-red-single-core-automotive-cable-australian-made-100m-roll","title":"KEY - 4B\u0026S (20.29mm²) Red Single Core Automotive Cable - Australian Made - 100m Roll","description":"\u003ch2\u003e100m Roll of 4B\u0026amp;S (20.29mm²) Red Single Core Automotive Cable - High-Current Wiring for Vehicles and Outdoor Projects\u003c\/h2\u003e\n\u003ch3\u003eEngineered for Demanding 12V, 24V, and 48V DC Applications\u003c\/h3\u003e\n\u003cp\u003eThis \u003cstrong\u003e100-metre roll of 4B\u0026amp;S (20.29mm²) red single core automotive cable\u003c\/strong\u003e is built to handle high-current loads in vehicle electrical systems, from starter motor circuits to auxiliary battery banks and high-power accessories. With a \u003cstrong\u003ecurrent rating of 135A at 30°C\u003c\/strong\u003e (derating factors apply), it suits auxiliary battery charging, DC-DC chargers, large MPPT solar controllers and inverter connections. The cable is rated for \u003cstrong\u003emaximum DC voltage up to 120V\u003c\/strong\u003e, making it suitable for 12V, 24V, and 48V systems in caravans, 4WDs, marine setups, and off-grid solar arrays.\u003c\/p\u003e\n\u003cp\u003eIt uses a \u003cstrong\u003ehigh-conductivity oxygen-free copper conductor\u003c\/strong\u003e with fine-stranded construction for flexibility and vibration resistance, with a low electrical resistance of 0.9 ohm\/km at 20°C. The \u003cstrong\u003ePVC insulation is rated up to 90°C\u003c\/strong\u003e, for reliable performance under the bonnet, in chassis runs and in marine environments.\u003c\/p\u003e\n\u003cp\u003e*Note typical de-rating factors apply: current capacity reduces when cables are bundled or ambient temperatures exceed 30°C. For example, two cables bundled together require a 0.8 multiplier, reducing the effective rating to 108A.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e20.29mm² (4B\u0026amp;S) conductor\u003c\/strong\u003e - 135A rating at 30°C, ideal for high-current DC circuits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOxygen-free copper\u003c\/strong\u003e - fine stranding for conductivity and flexibility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e90°C PVC insulation\u003c\/strong\u003e - withstands engine bay heat and resists common automotive fluids\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e120V DC maximum voltage\u003c\/strong\u003e - suitable for 12V, 24V, and 48V automotive and off-grid systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100-metre roll\u003c\/strong\u003e - for workshops, installers, and large projects\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoHS compliant\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBuilt for Australian Conditions\u003c\/h3\u003e\n\u003cp\u003eAustralian made by KEY Tubing \u0026amp; Electrical (KTE), an Australian-owned manufacturer based in South Australia with over 60 years of industry experience. The red insulation gives clear polarity identification for positive runs, and the cable complies with RoHS and Australian and New Zealand safety standards.\u003c\/p\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDual-battery systems in 4WDs, caravans, and camper trailers\u003c\/li\u003e\n\u003cli\u003eHigh-output alternator and starter motor upgrades\u003c\/li\u003e\n\u003cli\u003eDC-DC charger and solar charge controller connections\u003c\/li\u003e\n\u003cli\u003eLarge inverter installations (up to 120V DC)\u003c\/li\u003e\n\u003cli\u003eMarine electrical systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy This Cable Reduces Risk\u003c\/h3\u003e\n\u003cp\u003eUndersized or low-quality cable is a common cause of voltage drop, overheating, and unreliable system performance. This 4B\u0026amp;S cable's generous cross-section and high-purity copper minimise resistive losses. Note that these automotive battery\/starter cables are not suitable for mains power supply connections; for the best results, have a professional install your cables.\u003c\/p\u003e\n\u003ch3\u003eOrder Your 100m Roll Today\u003c\/h3\u003e\n\u003cp\u003eAdd the \u003cstrong\u003e100m Roll of 4B\u0026amp;S (20.29mm²) Red Single Core Automotive Cable\u003c\/strong\u003e to your order for Australian-made cable that meets the demands of professional installers and DIY enthusiasts alike.\u003c\/p\u003e","brand":"KEY","offers":[{"title":"Default Title","offer_id":54373104943387,"sku":"Key-KABC1287030RD100","price":794.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0854\/3354\/9083\/files\/4bs-red-automotive-cable-100m-roll-key-kabc1287030-rd-1001_2.jpg?v=1792911126","url":"https:\/\/www.nbcampingequipment.com.au\/products\/key-4bs-20-29mm2-red-single-core-automotive-cable-australian-made-100m-roll","provider":"NB Camping Equipment","version":"1.0","type":"link"}