Truck Upfitters Surface Mounted 50A Circuit Breaker (12V-48V, 50 Amp). for DC Automotive and Marine/Boat use: Main Power Breaker, Audio, Winches, Solar, Lighting, Electric Motors & Other Accessories.

These Truck Upfitters circuit breakers are just the thing you need to install your boat trolling motor, RV solar panel system, truck winch, or car audio system! We have 50A, 100A, 150A, 200A, 250A & 300Amp Auto Circuit Breakers to choose from! All of our circuit breakers are ignition protected and waterproof, so safe for marine and automotive use. They come with these various lug and heat shrink tube sizes:50 amp: 6 AWG lug with a 1/4" hole and 8mm heat shrink tubing (red and black)100 amp: 4 AWG lug with a 1/4" hole and 10mm heat shrink tubing (red and black)150 amp: 2 AWG lug with a 1/4" hole and 12mm heat shrink tubing (red and black)200 amp: 2 AWG lug with a 1/4" hole and 12mm heat shrink tubing (red and black)250 amp: 1/0 AWG lug with a 1/4" hole and 15mm heat shrink tubing (red and black)300 amp: 1/0 AWG lug with a 1/4" hole and 15mm heat shrink tubing (red and black)Always consult a professional when installing circuit breakers for any vehicle accessory. Each circuit breaker in marked with "AUX LOAD" on one mounting stud and "BAT LINE" on the other. Be sure to install so that the the POSITIVE accessory cable is attached to the "AUX LOAD" (bottom) of the circuit breaker and the positive terminal of the battery cable is attached to the "BAT LINE" (top) of the circuit breaker. Also ensure that the battery in the vehicle is securely and that the NEGATIVE side of the battery terminal is properly grounded to the vehicle. Please refer to the diagram for proper installation.

• Each Circuit Breaker comes with two 6 AWG copper wire lugs with 1/4" holes, two 8mm heat shrink tubes (one red, one black), two 1" stainless steel self-tapping sheet metal hex-head screws with rubber padded metal washers, two rubber washers and 4 copper washers. The hardware is designed to allow the circuit breaker to be attached to a sheet metal surface, although wood screws (not included in this kit) can be used with the copper washers if necessary to attach to a wood or fiberglass substrate.
• These circuit breakers are an excellent way to protect you car, truck, boat or RV's DC accessories in the event of a short circuited or overloaded condition. When tripped, this DC breaker will remove power to the circuit & place itself in a visibly noticeable "tripped" condition, but can easily be reset by manually flipping the red reset lever back into the dc circuit breaker housing. It is a resettable fuse that can also by manually "tripped" by depressing the red button on top of the breaker.
• This 50 amp breaker is an auto or marine circuit breaker that can also be used as a power disconnect switch. It is an excellent solution for placing between a battery and trolling motor plug, to use as an amp disconnect switch, as a main 50 amp marine circuit breaker, as a car amp fuse, inside a trolling motor battery box, or simply as a DC 50 amp circuit breaker. This is a 12-48 volt DC (Direct Current) fuse breaker & CANNOT be used IN ANY AC (Alternate Current) OR HOUSEHOLD APPLICATION.
• Be sure to consult your owner's manual when being used for your trolling motor plug and receptacle. Typically a 50 amp fuse is used on 12V trolling motors with 30, 40, or 45 lbs of thrust, 24V trolling motors with 70 lbs of thrust, & 36V trolling motors with no more than 100 lbs of thrust. A pair of 6 AWG copper lugs are included in this kit, but please verify that a 6 AWG gauge trolling motor wire will be thick enough to handle your specific volt trolling motor plug.
• Always consult a 12-48V DC wiring specialist if you are unsure about how to determine what type (this is a DC), amp (this is a 50A), and volt circuit breaker you require for your vehicle & vehicle accessories. A 1-300 amp circuit tester can be used to determine the draw of an accessory during initial, peak, and normal operation of the accessory, but this inline breaker is not a substitute for a sound professional installation. Always consult a professional before installation.