Blue Sea Systems 187 Series Thermal Circuit Breaker - 50A 48V DC

Safeguard your vessel's critical electrical systems with the Blue Sea Systems 187 Series Thermal Circuit Breaker. This essential component expertly combines reliable circuit protection with convenient switching, ensuring the safety and efficiency of your marine DC power. Designed to withstand demanding conditions and engineered for peace of mind, this breaker is ignition protected and fully waterproof. Upgrade your electrical reliability today.

Key Features & Benefits:

• Dual Functionality: Seamlessly integrates switching and circuit protection into a single, space-saving device, simplifying panel design and installation.
• Ignition Protection: Meets rigorous SAE J1171 external ignition protection standards, providing crucial safety by preventing the ignition of flammable engine room vapors – essential for gasoline-powered boats.
• Uncompromised Safety: Features a 'Trip Free' design that automatically interrupts the circuit during a fault condition and cannot be manually held closed, protecting your wiring and equipment from damage.
• Durable & Waterproof: Robust waterproof construction ensures reliable performance and longevity even in the harsh, wet marine environment.
• High Capacity Rating: Rated for 50 Amps and a maximum of 48 Volts DC, suitable for a wide range of demanding marine DC applications.
• Superior Fault Handling: Boasts a high interrupt rating (5,000A @12V DC, 3,000A @24V DC, 1,500A @42V DC) to safely manage significant fault currents.
• Secure Connections: Equipped with robust 5/16 terminals designed to accept heavy gauge wire lugs, allowing for high-torque, secure electrical connections.
• Simplified Installation: The self-trimming case and round profile enable straightforward mounting using standard hole saws, presenting a clean, professional finish.

WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.