Hamolar 150A Resettable Circuit Breaker 3-Pack for Car Audio 12–48V — Push-Button Reset & Kill Switch

Hamolar 150 Amp resettable circuit breaker is a manual-reset protection device that replaces inline fuses to guard car, marine, and RV audio amplifiers from overloads and short circuits.

When you run powerful amplifiers or DC accessory systems, a reliable protective device prevents damage to the amp, wiring, and battery. The Hamolar 3-pack of 150A resettable breakers works across 12–48V systems, offers a push-button reset that doubles as a kill switch, and includes installation accessories so you can swap them in for conventional fuse holders quickly.

How does the Hamolar breaker protect my car audio system?

The unit interrupts excessive current before components overheat or wiring insulation fails. It trips on sustained overloads or short circuits, isolating the fault and letting you reset the circuit with a simple push-button after fixing the issue.

• Manual-reset push button restores power without replacing fuses.
• Rated 150 amps to handle high-current amplifiers and subwoofer systems.
• Works across 12–48V DC systems for cars, trucks, boats, and RVs.
• Prevents battery stress and potential damage from power surges.

What are the electrical specifications and environmental limits?

This breaker is specified for 12–48V DC applications and is designed to operate reliably in a wide temperature range. The product includes wire lugs and copper washers so you have the hardware needed for a secure, low-resistance connection at installation.

• Current rating: 150 amps continuous protection for audio circuits.
• Voltage compatibility: 12–48V DC suitable for 12V and 24V systems.
• Operating ambient temperature: -32°C to 82°C (-25°F to 180°F).
• Includes wiring lugs and copper washer for tight terminal connections.

Can the reset button be used as a kill switch or control?

Yes — the large manual push button serves both as a reset and a convenient manual disconnect. That makes it useful for quickly cutting power during troubleshooting, installation, or when you need to secure the system without removing power leads.

• Push-button reset restores circuit after fault resolution.
• Acts as a simple kill switch to disconnect the amplifier instantly.
• Easy-to-reach design ideal for in-dash or trunk-mounted installations.
• Reduces downtime compared with replacing blown fuses.

Where should I install these breakers, and which vehicles are they suited for?

Install the breaker close to the battery or at the distribution block to protect the wiring run and connected devices. It’s suitable for car audio/video systems, marine sound amplifiers, RV electronics, ATVs, winches and other high-current 12–48V DC accessories where inline overcurrent protection is needed.

• Recommended near the battery or main power feed for best protection.
• Compatible with cars, trucks, boats, RVs, ATVs, and buses.
• Works with trolling motors and DC amplifiers to prevent surges.
• Three-pack gives spares for multiple circuits or redundancy.

Who is this for: Installers, car audio enthusiasts, and boat or RV owners who run high-current audio systems and want a robust, serviceable alternative to disposable inline fuses. The Hamolar 150A resettable breaker is also a practical choice for mechanics, fleet operators, and DIYers who prefer a reusable, visible protective device that doubles as a manual power disconnect.