40 amp manual reset circuit breaker designed for protecting 12V electrical systems from overloads and short circuits. Commonly used with booster pumps, RO/DI systems, RVs, marine equipment, auxiliary batteries, and other DC-powered applications. The breaker installs inline on the positive power wire and automatically interrupts power if excessive current is detected. The integrated reset lever also allows the breaker to function as a manual on/off disconnect switch for pumps and other electrical components.

Key Features:

• 40 amp circuit protection for 12V DC systems
• Manual reset switch design
• Functions as both a circuit breaker and disconnect switch
• Commonly used with booster pumps and RO/DI systems
• Helps protect wiring and electrical equipment from overloads and short circuits
• Inline installation on positive power wire
• Panel-mount compatible
• Resettable without replacing fuses
• Phenolic plastic housing
• Suitable for automotive, marine, RV, and auxiliary electrical systems

Specs:

• Amperage Rating: 40A
• Voltage: 12V DC
• Reset Type: Manual Reset
• Mounting Style: Panel Mount
• Housing Material: Phenolic Plastic
• Operating Temperature Range: 32°C to 80°C
• Water Resistance: Waterproof
• Stud Size: 1/4”-28

Additional Notes:

• Commonly installed between the battery and pump/controller
• Can be used as a manual shutoff for booster pumps
• Intended for installation in protected locations away from moisture