Hi-Amp Circuit Breakers for Marine, RV, Truck and DC Power Systems

Photo-Top Hi-Amp Circuit Breakers, also known as High Amp Circuit Breakers, are designed for high-current DC circuit protection in marine, RV, truck, heavy-duty vehicle, and DC power systems. With IP67 water-resistant housing, manual reset operation, stainless steel studs, and a 25A to 150A current range, they provide reliable protection for battery lines, auxiliary power equipment, accessories, winches, pumps, and DC distribution systems in 24V and 48V applications.

Reliable High-Current DC Protection

In marine, RV, truck, and outdoor vehicle applications, electrical components are often exposed to vibration, moisture, dust, and temperature changes. A reliable circuit breaker must protect the circuit from overload while maintaining stable performance during long-term operation.

Photo-Top Hi-Amp Circuit Breakers feature an IP67 water-resistant housing to help protect against splash, dust, and harsh working environments. The body is made with UL-rated 94V-0 material, offering additional safety for demanding DC electrical installations.

Stainless Steel Studs for Durable Connections

High-current DC systems require secure and stable connections. Poor contact, loose terminals, or damaged studs may cause overheating, voltage drop, or unexpected equipment failure.

The upgraded stainless steel studs provide better strength and corrosion resistance, making these Hi-Amp Circuit Breakers suitable for marine, humid, outdoor, and heavy-duty vehicle environments. This helps improve connection reliability and supports longer service life in demanding applications.

Ignition Protected for Marine and Vehicle Use

Photo-Top Hi-Amp Circuit Breakers are ignition protected and meet SAE J1625, SAE J1171, UL1500, and CE requirements. They are suitable for boats, yachts, fishing boats, RVs, trucks, construction vehicles, and other DC accessory circuits where electrical safety and environmental protection are important.

Suitable for 24V and 48V DC Applications

These High Amp Circuit Breakers are designed for 24V and 48V DC power systems, including battery protection, DC power distribution, auxiliary equipment, winches, pumps, inverters, solar charging systems, and high-current accessories.

With 3,000A interrupting capacity at 48VDC and a wide 25A to 150A current range, Photo-Top Hi-Amp Circuit Breakers are a practical choice for demanding DC electrical systems.

Manual Reset Design for Easy Maintenance

The T3 manual reset design allows users to reset the breaker after an overload condition. Compared with one-time-use protection devices, a resettable circuit breaker helps reduce replacement needs and makes maintenance easier.

This is especially useful for marine, RV, truck, and outdoor power systems where quick inspection, reset operation, and field maintenance are important.

Surface Mount Installation

The surface mount design makes installation easier for battery, panel, and equipment mounting applications. A protective stud insulator is included to improve installation safety and reduce the risk of accidental contact. With 1/4"-28 threaded stainless steel studs, the breaker supports secure wiring connections in high-current DC systems.

Main Applications

Marine Applications

Photo-Top Hi-Amp Circuit Breakers can be used in boats, yachts, fishing boats, marine battery systems, pumps, winches, and DC power distribution. The IP67 housing, ignition-protected design, and stainless steel studs make them suitable for wet and high-humidity environments.

RV and Caravan Applications

RVs and caravans require reliable protection for auxiliary batteries, solar charging systems, lighting, inverters, and onboard accessories. A resettable High Amp Circuit Breaker helps protect the circuit and supports easier maintenance during outdoor use.

Truck and Heavy-Duty Vehicle Applications

Trucks, buses, construction vehicles, and service vehicles often operate under vibration and long working hours. Hi-Amp Circuit Breakers can be used for battery lines, lift gates, winches, auxiliary power, and other high-current DC equipment.

Available Current Ratings

Photo-Top Hi-Amp Circuit Breakers are available in multiple amperage ratings:

25A, 30A, 40A, 50A, 60A, 70A, 80A, 90A, 100A, 120A, 130A, 135A, 140A, and 150A.

This wide current range allows customers to select the right breaker according to their system design and protection requirements.

Key Features

25A to 150A current range

Suitable for 24V and 48V DC applications

IP67 water-resistant and dust-resistant housing

Stainless steel studs for improved durabilit

Ignition protected design

Meets SAE J1625, SAE J1171, UL1500, and CE requirements

3,000A interrupting capacity at 48VDC

Manual reset T3 design

UL-rated 94V-0 body material

Surface mount installation

Protective stud insulator included

Suitable for marine, RV, truck, heavy-duty vehicle, and DC accessory protection

Conclusion

For marine, RV, truck, and DC power system applications, choosing the right circuit breaker is important for safety, maintenance, and long-term reliability.

Photo-Top Hi-Amp Circuit Breakers provide water resistance, ignition protection, stainless steel studs, manual reset operation, and a wide 25A to 150A current range. With stable performance in 24V and 48V DC applications, they are a reliable solution for OEM manufacturers, distributors, vehicle builders, marine suppliers, and aftermarket electrical protection applications.