Hamolar 3 Pack 300A Circuit Breaker with Manual Reset – Car Audio & Marine DC Protection

Overview

Protect your car audio, marine, and DC power setups with the Hamolar 3 Pack 300A Circuit Breaker. Each compact unit is designed to interrupt excessive current and voltage fluctuations, helping to reduce wear on amplifiers and power sources. The manual reset feature doubles as a practical kill switch option, giving you quick control in moments of need.

Built for real‑world environments, these breakers are engineered to perform across a wide range of DC applications. They’re equally at home in a vehicle, boat, or RV, providing a dependable safeguard where power integrity matters most. This 3‑pack gives you multiple placements or a spare for future upgrades, so you can protect several components with a single purchase.

Why this matters for your setup

Over‑current events and short circuits can create abrupt power losses or stress the electrical system. The Hamolar circuit breakers offer a practical, resettable solution that helps curb surge risks and electrical damage in demanding conditions. While no device can guarantee outcomes, users often appreciate the added layer of protection this type of component provides for amps, trolling motors, and DC audio systems.

Key features and specifications

• Voltage range: 12–48V DC, compatible with typical 12V and 24V systems
• Current rating: 300A per breaker with manual reset
• Ambient operating range: -32°C to 82°C (-25°F to 180°F)
• Includes wire lugs and copper washer for ready installation
• Suitable for car audio/video, boats, trucks, RVs, ATVs, and marine DC systems

What’s included

• Three 300A circuit breakers
• Wire lugs
• Copper washer
• Installations accessories and quick reference

Real‑world use cases

Imagine a boat stereo setup facing changing weather and engine activity, where a reliable resettable breaker helps keep the system healthy after a surge. Or consider a shore‑power setup for an RV or a vehicle audio install that benefits from a robust, actionable power protection solution. The compact form fits tight compartments or crowded fuse panels, offering flexible placement without bulky hardware.