150A Automatic Circuit Breaker — Key benefits, features, and realworld uses Why you need it Protects equipment and wiring by instantly disconnecting power when current exceeds safe limits, preventing damage from short circuits and electrical faults. Combines automatic overload protection with a manual reset/disconnect so you can quickly restore power after a fault is cleared. Compact, durable design made for harsh marine and automotive environments where reliability matters. What it does (core functions) Automatic overload protection: trips immediately on excessive current to safeguard amplifiers, accessories, and vehicle electrical systems. Pushbutton disconnect and reset: acts as an emergency on/off switch and lets you manually reset the circuit once the issue is resolved, minimizing downtime. current terminal design: accepts 1/0GA or 4GA wire for secure connections and consistent power delivery. Key attributes Rating: 150A automatic circuit breaker. Terminals: Designed for 1/0GA or 4GA wiring. Materials: temperature resistant ABS and metal enclosure for lasting durability. Size: Compact 102 x 40 x 64 mm for easy installation on panels, firewalls, or tight mounting locations. Versatile mounting options suitable for boats, trucks, buses, RVs, ATVs and marine DC sound amplifier systems. Performance and reliability Ensures stable power delivery under heavy current loads thanks to robust terminal design. Withstands elevated temperatures and vibration common in marine and vehicle applications due to rugged ABS/metal housing. Pushbutton manual reset simplifies fault recovery without tools. Practical use scenarios Marine audio protection: Install between battery and a DC sound amplifier on a boat. If a short or amplifier fault occurs, the breaker trips to protect the amp and wiring; reset the breaker after repairs to resume operation. ATV winch safety: Protect the winch circuit when pulling heavy loads. The breaker trips if the motor stalls or overheats, preventing wire damage; use the push button to disconnect power during maintenance. RV accessory and battery protection: Use on an RV's auxiliary circuit to isolate and protect refrigerators, inverters, or lighting circuits from surges or shorts. The compact footprint fits on panels or firewall mounts. Installation notes Use appropriate 1/0GA or 4GA cable and properly torque terminals for a secure, lowresistance connection. Mount in a location that allows access to the pushbutton reset and provides ventilation away from direct heat sources. This 150A automatic circuit breaker provides dependable overload protection, convenient manual reset functionality, and a rugged build suited to marine and automotive environments.