Hamolar 3-Pack 100A Manual-Reset Circuit Breaker for 12–48V Systems — Panel-Mount Overcurrent Protection

Hamolar 3 Pack 100 Amp manual-reset circuit breakers protect 12V–48V vehicle and marine electrical systems by interrupting overloads and allowing quick manual resets.

These compact, panel-mount breakers are built for automotive, marine, and off-road use where reliable overcurrent protection and a convenient reset function matter. Rated for 100 amps and compatible across 12V–48V DC systems, each unit replaces an inline fuse holder and can act as a kill switch when needed. Install them on trolling motors, car audio systems, winches, or RV circuits to reduce the risk of wire heating and component damage from short circuits and sustained overloads.

How do these breakers protect my amplifier or trolling motor?

When current exceeds the rated 100A, the internal mechanism trips to break the circuit and stop potentially damaging flow. That prevents amplifier clipping, motor overheating, and wiring damage from sustained overloads or short circuits. Because the breaker is manual reset, you can inspect the circuit and restore power without replacing a fuse.

• Interrupts excessive current to prevent component damage
• Manual push-button reset avoids fuse replacement
• Works reliably in repeated trip/reset cycles
• Includes wire lugs and copper washers for secure terminations

Will these work with my 12V car, 24V boat, or 48V system?

Yes—Hamolar breakers are specified for 12–48V DC, so they are compatible with standard 12V and 24V vehicle or marine systems and many 48V setups used in specialty applications. The wide voltage range and rugged temperature tolerance make them suitable across diverse battery systems. Always check your system’s continuous current draw and peak surges to confirm 100A is the correct rating.

• Rated for 12–48V DC systems
• Suitable for car audio, marine, RV, ATV, and winch circuits
• Temperature rated from -32°C to 82°C for varied climates
• Works as a replacement for inline fuse holders

How do I mount and wire the Hamolar 100A breaker?

Mounting is straightforward—secure the breaker to a panel or bulkhead near the battery or component using the provided hardware, then attach battery and load wires to the two heavy-duty terminals. Use the included wire lugs and copper washers for a corrosion-resistant, low-resistance connection. Tighten to recommended torque and locate the breaker where it’s accessible for manual resetting.

• Panel-mount installation with included accessories
• Attach wires with supplied lugs and copper washers
• Place near battery or protected device for best protection
• Accessible push-button allows safe, visible resets

What maintenance or checks should I perform?

Periodically inspect terminals for corrosion and confirm mounting hardware remains tight. Test the manual reset button after a known trip or during routine system checks to ensure reliable operation. Replace if terminals show excessive wear or if the breaker no longer trips and interrupts current as expected.

• Inspect connections for corrosion and tightness monthly
• Test reset function during routine maintenance
• Replace if mechanical reset or trip behavior degrades
• Keep unit dry and protected from prolonged salt exposure

Who is this for: Technicians, boat owners, RV and off-road enthusiasts, and audio installers who need a durable, reusable overcurrent safeguard for 12V–48V systems. Choose the Hamolar 3-pack when you want consistent 100A protection across multiple circuits—ideal for protecting amplifiers, trolling motors, winches, and other high-current DC loads while minimizing downtime thanks to the manual reset feature.