Each Brake Circuit Disconnect comes complete with 30 amp. relay, 4- 5 ft. 14 gauge leads and complete installation instructions with wiring schematic. The Brake circuit disconnect may be used with any supplemental braking system that activates the towed vehicle brake pedal and uses its factory lights while towing instead of an external light bar or bulb and socket light kit.This item is a 12-Volt power plug that is for the use of turning off brake lights on vehicles that need it when using our Diode Kit (DI-2020). This item is sent with every Diode Kit in case your vehicle needs it. With most newer models, the BCD-110 is not needed.
