Hamolar 150A Resettable Circuit Breaker for Car Audio 3-Pack — 12–48V DC Overload Protection, Manual Push-Button Reset

Hamolar 3 Pack 150 Amp resettable circuit breakers protect car and marine audio systems by stopping overloads and letting you manually reset power without replacing fuses.

These compact, manually resettable circuit breakers are designed for 12–48V DC electrical systems and install in place of inline fuse holders to safeguard amplifiers, batteries, trolling motors and other DC audio equipment. Built to tolerate wide ambient temperatures and supplied with wire lugs plus copper washers, each breaker both prevents damage from overcurrent and can act as a convenient power kill switch when needed.

How does this circuit breaker protect my car audio amp?

The Hamolar 150A breaker interrupts excessive current before it harms wiring or the amplifier. When the device senses an overload or short, it trips and isolates the circuit; you can then inspect the system and press the push-button to restore power.

• Rated 150 amps for high-current audio applications
• Stops surges that can damage amp output stages
• Manual push-button reset avoids fuse replacement
• Functions as a kill switch for quick power cut-off

Will it work with my vehicle, boat, or RV?

Yes — the breaker supports any 12V or 24V DC system and is specified to operate across 12–48V, making it compatible with cars, trucks, boats, RVs and many marine and off-road installations. Its temperature tolerance suits harsh environments.

• Works in 12–48V DC systems, including 12V and 24V setups
• Ambient rating: -32°C to 82°C (-25°F to 180°F)
• Suitable for automotive, marine, RV, ATV and bus audio systems
• Includes wire lugs and copper washers for secure connections

How do I install and reset the Hamolar 150A breaker?

Installation replaces an inline fuse holder: mount the breaker to a secure surface, connect positive battery and load wires with the supplied lugs and washers, and torque appropriately. If the unit trips, press the exposed push button to reset after you fix the fault.

• Mount with screws on a stable, dry surface
• Use supplied wire lugs and copper washers for terminals
• Always disconnect battery before wiring for safety
• Reset by pressing the clearly visible push button

What are the practical benefits compared to a disposable fuse?

A resettable breaker reduces downtime and ongoing cost because you won't need to replace fuses after an overload; it also provides a visible, reusable manual cut-off. For high-current audio installations it offers repeatable protection without keeping spare fuses on hand.

• No need to carry spare blade or ANL fuses
• Faster recovery after troubleshooting—press to reset
• Durable design for repeated trip/reset cycles
• Can double as a convenient kill switch during service

Who is this for: The Hamolar 3-pack 150A resettable breakers are aimed at car audio enthusiasts, installers and DIYers who run high-power amplifiers, marine and RV owners who need reliable DC overload protection, and anyone who prefers a reusable, manual reset over disposable fuses. If you install or maintain 12–48V audio or motorized DC equipment and value fast reset, robust temperature tolerance, and included hardware for secure wiring, this pack provides three ready-to-install protection points for amplifiers, winches, trolling motors and more.