80A DC Circuit Breaker — 12V/24V/48V

Discover the ultimate guardian for your DC electrical systems with our 80A Automatic Over-Current Circuit Breaker! This innovative device is more than just protection; it's peace of mind, combining a powerful resettable fuse with a convenient on/off switch. Say goodbye to constantly replacing blown fuses and hello to effortless system control, ensuring your valuable equipment is safe from unexpected power surges, short circuits, and wiring mishaps.

Designed for anyone building or maintaining robust DC setups, this breaker works seamlessly with 12V, 24V, and 48V DC systems. It offers reliable, automatic overcurrent defense and instant manual circuit isolation, all in one durable unit. Whether you're dealing with high power draw, accidental wiring mistakes, or equipment faults, this breaker provides immediate and crucial protection, unlike traditional fuses that require replacement after a fault. Simply reset it and you're good to go!

Beyond its primary protective role, the integrated manual-break option allows it to function as a simple on/off switch, making disconnection and reconnection of your system incredibly easy. Crafted from strong, high-temperature resistant thermal plastic (UL94V-0 rated), this circuit breaker is built to last. It boasts an IP67 water-resistant rating, meaning it’s completely protected against dust and capable of immersion in water up to 1 meter for 30 minutes, making it ideal for harsh environments. Furthermore, it's ignition-protected, meeting international standards S.A.E. J1625, J1171, and UL1500 for enhanced safety.

Key Features & Benefits:

• Automatic Overcurrent Protection: Shields your valuable DC circuits from damage caused by high current events, including short-circuits and overloads.
• Integrated On/Off Switch: Provides convenient manual disconnection and reconnection of your system without additional components.
• Resettable Design: No more replacing blown fuses! Simply reset the breaker after a fault, saving time and money.
• Wide Voltage Compatibility: Automatically detects and works with 12V, 24V, and 48V DC systems.
• Robust & Durable Construction: Made from UL94V-0 rated thermal plastic, designed to withstand high temperatures.
• Waterproof & Dust-Tight (IP67): Ensures reliable operation even in challenging, wet, or dusty environments.
• Ignition Protected: Meets critical safety standards (S.A.E. J1625, J1171, UL1500) for marine and automotive applications.
• Flexible Mounting: Can be mounted on a panel or recessed to suit your installation needs.

Product Specifications:

• Rating: 80 Amps (A)
• Type: Thermal overcurrent protection device
• Material: Thermal Plastic (UL rated 94V-0)
• Operating Temperature: -32°C to 82°C (-25.6°F to 179.6°F)
• Storage Temperature: -34°C to 149°C (-29.2°F to 300.2°F)
• Terminals Size: M6
• Enclosure & Waterproof Rating: IP67
• Size: 74 x 48 x 37 mm (approx. 2.91" x 1.89" x 1.46")
• Weight: 110g (approx. 3.88 oz)
• International Standard Compliance: S.A.E. J1625, J1171, UL1500

Ideal Applications:

This versatile 80A circuit breaker is perfect for a wide array of DC applications, including but not limited to:

• Connecting solar or wind charge controllers to batteries.
• Acting as a protective barrier between off-grid inverter DC inputs and batteries.
• Safeguarding DC power distribution or charging circuits.
• Various DC automotive applications, from cars to heavy-duty vehicles.
• Reliable protection for marine electrical systems on boats and yachts.

For detailed performance characteristics, please refer to the downloadable documents:
- Time vs Rated Current graph for Photonic Universe 80A Circuit Breaker (CBR80)
- Temperature Derating graph for Photonic Universe 80A Circuit Breaker (CBR80)

Why Choose This 80A DC Circuit Breaker?

Invest in the reliability and safety of your DC power systems. This 80A circuit breaker is not just a component; it's an upgrade to superior protection and convenient control. Prevent costly damage to your valuable equipment, eliminate the hassle of constant fuse replacements, and enjoy a robust electrical setup with a device engineered for endurance and peak performance in even the most demanding environments. It's the smart, long-term choice for safeguarding your critical DC applications and ensuring uninterrupted power where it matters most.