4B&S (20.29mm²) Red Single Core Automotive Cable per Metre Popular Add this Blue Sea MRBF

Add this Blue Sea MRBF terminal fuse to your build to help protect your battery-to-load DC feed and support a safer

Off-grid DC systems where controlled shutdown improves maintenance safety

For system owners

this switch delivers professional-grade performance

a weekend camper trailer

4B&S (20.29mm²) Red Single Core Automotive Cable per Metre Popular Add this Blue Sea MRBF4B&S (20. 29mm) Red Single Core Automotive Cable: High Current Power Delivery for Demanding Vehicle Systems Engineered for Reliable 12V, 24V, and 48V Automotive and Marine Applications The 4B&S (20. 29mm) red single core automotive cable is purpose built to handle high current loads in vehicle electrical systems, from starter motor circuits to auxiliary battery banks and high power accessories. With a 135A amp rating at 30C (derating factors apply),