Hamolar 3-Pack 80A Manual-Reset DC Circuit Breakers for 12V–48V Systems — Push-Button Reset & Wire Lugs

Hamolar 3-pack 80 amp manual-reset DC circuit breakers provide resettable overcurrent protection for 12V–48V vehicles and marine systems.

These compact, manual-reset circuit breakers replace inline fuse holders to protect amplifiers, trolling motors, winches and other DC loads from overloads and short circuits. Rated for 80 A and compatible with 12V and 24V systems (and up to 48V DC), each breaker includes wire lugs and copper washers for secure, low-resistance connections and an easy push-button reset that can also serve as a convenient kill switch.

How will these breakers protect my car audio or amplifier system?

Installed between the battery and the amplifier or other high-current accessory, the Hamolar 80A breakers trip when current exceeds safe limits, interrupting the circuit and preventing heat damage. Because they are manual-reset, you can quickly restore power after resolving the fault without replacing a fuse.

• 80 amp trip rating designed for common audio amplifiers and accessories
• Manual push-button reset avoids fuse replacement downtime
• Wire lugs and copper washers ensure durable, low-resistance terminations
• Suitable for 12V–48V DC systems, including automotive and marine installations

Can I use these on a boat, RV, or with a trolling motor?

Yes — the breakers are rated for DC voltages between 12 and 48 volts and operate across a wide temperature range, making them suitable for marine and recreational vehicles. Their corrosion-resistant connections and rugged construction are appropriate for environments where vibration and moisture are factors.

• Voltage compatibility: 12V–48V DC for marine and RV systems
• Temperature tolerance from -32°C to 82°C (-25°F to 180°F)
• Manual reset works as an accessible kill switch on boats or ATVs
• Designed to protect trolling motors, winches, and DC amplifiers

How do I install and reset these breakers safely?

Mount the breaker in-line close to the power source or battery using the included wire lugs and copper washers to secure connections. After the breaker trips, identify and correct the overload or short before pressing the button to reset; do not repeatedly reset without fixing the underlying issue.

• Disconnect power before wiring; use appropriate gauge cable for 80 A service
• Tighten terminals with copper washers to reduce resistance and heat buildup
• Mount in a ventilated location away from direct water spray and extreme heat
• Use the push-button reset only after resolving faults causing the trip

What makes these Hamolar breakers different from single-use fuses?

Unlike one-time fuses, these breakers can be reset after a trip, saving replacements and downtime. The included hardware and robust design also simplify installation and improve connection reliability in high-current DC circuits.

• Resettable design lowers maintenance and spare-part needs
• Durable terminals and copper washers for long-term conductivity
• Push-button doubles as a kill switch for quick power shutoff
• Sold as a 3-pack to protect multiple circuits or provide spares

Who is this for? Install the Hamolar 3-pack 80A manual-reset breakers if you maintain aftermarket car audio systems, run DC amplifiers, operate trolling motors, or need reliable overcurrent protection on boats, RVs, trucks, ATVs, and winches. They suit installers and DIYers who value resettable protection, secure copper-lug connections, and compatibility across 12V–48V DC systems.