Hamolar 3-Pack 100A Manual-Reset Circuit Breakers for 12–48V DC — Wire Lugs & Push-Button Kill Switch

Hamolar's 3-pack 100 Amp manual-reset circuit breakers protect 12V–48V DC systems by interrupting excessive current and offering a reusable reset option for car, marine, and ATV electrical circuits.

These manual-reset circuit breakers are designed to replace inline fuse holders and protect sensitive electronics, trolling motors, amplifiers, winches, and battery circuits from overcurrent situations. Rated for 100 amps and compatible with 12V–48V systems, each unit includes wire lugs and a copper washer for reliable installation. The push-button manual reset doubles as a convenient kill switch when needed, making these breakers practical for both workshop installs and field repairs.

How does this breaker prevent damage to my audio or motor system?

The Hamolar 100A breaker trips when current exceeds safe levels, breaking the circuit before wires, batteries, or equipment sustain thermal or overload damage. Because it interrupts surges quickly and is manually resettable, you avoid repeated fuse replacements while maintaining protection.

• 100 amp trip threshold to stop excessive current flow
• Quick manual reset button to restore power after resolving faults
• Prevents overheating and wiring insulation failure
• Suitable for amplifiers, trolling motors, winches, and DC systems

Will these work in my 12V car and 24V marine systems?

Yes—the Hamolar breakers are specified for 12–48V DC operation and are compatible with common vehicle and marine electrical systems. They operate across a wide ambient temperature range, ensuring reliable performance in both cold garages and hot engine compartments.

• Voltage range: 12V to 48V DC for versatile use
• Ambient temperature tolerance: −32°C to 82°C (−25°F to 180°F)
• Includes wire lugs and copper washers for secure connections
• Works as a fuse alternative and a kill switch for manual control

How do I install and reset these circuit breakers safely?

Installation is straightforward: mount the breaker to a clean, grounded surface, attach the supplied wire lugs with the copper washer, and route the positive feed through the device. After a trip, press the push-button reset once the fault is fixed; never reset repeatedly without diagnosing the cause.

• Mounting: secure to a chassis or panel with appropriate hardware
• Wiring: use correct gauge cable rated for 100A continuous current
• Reset: manual push-button once the source of the overload is addressed
• Safety tip: disconnect battery before major wiring work

What applications are best suited to these manual reset breakers?

These breakers are ideal where you want reusable overcurrent protection and easy manual shutdown: car audio systems, boats, RVs, ATVs, and electric winches. They protect both equipment and power sources while allowing rapid recovery after faults without replacing fuses.

• Car and marine audio/video amplifier protection
• Trolling motors and small electric propulsion systems
• ATV/UTV winches and auxiliary power circuits
• RV battery banks and DC distribution panels

Who is this for: The Hamolar 3-pack of 100A manual-reset circuit breakers is aimed at DIY mechanics, boat owners, RVers, car audio installers, and anyone who needs robust, reusable overcurrent protection for 12–48V DC systems. If you want a dependable, serviceable alternative to inline fuses that also provides a manual kill option, this kit delivers practical protection and installation hardware for immediate use.