Ensure robust electrical system protection with the Blue Sea Systems 187-Series Thermal Circuit Breaker. Engineered for reliability in demanding marine and vehicle applications, this 30 Amp, 48V DC panel-mount breaker combines switching and circuit protection into a single, compact device. Its ignition-protected, waterproof design meets SAE J1171 external ignition protection requirements, making it safe for installation aboard gasoline-powered boats. Upgrade to a dependable circuit protection solution today.
Key Benefits & Features:
- Integrated Protection: Combines both switching and circuit protection functions in a single, convenient device.
- Fault-Tolerant Operation: Features a "Trip Free" design, preventing the lever from being held "ON" during an overcurrent fault condition for enhanced safety.
- Marine-Grade Durability: Ignition protected and waterproof (IP66 rated), suitable for harsh environments and safe for use on gasoline-powered boats.
- Simplified Installation: Designed with a round, self-trimming case and recessed mounting holes, allowing for easy panel installation with a standard hole saw and a clean, finished appearance.
- High-Capacity Terminals: Equipped with robust 5/16" (M8) terminal studs and large clearance, accommodating heavy gauge wire lugs for high-torque, secure connections.
- Clear Status Indication: A large lever with vertical/horizontal orientation provides an immediate visual indication of the breaker's trip status.
- Broad Compatibility: Ideal for protecting vital DC electrical systems, including high-load applications like windlasses, up to 48 Volts DC.
- High Interrupt Capacity: Capable of interrupting up to 5,000 Amperes at 12V DC, 3,000 Amperes at 24V DC, and 1,500 Amperes at 42V DC.
- Wide Operating Temperature: Reliably performs in temperatures ranging from -25°C to +82°C.
- Durable Construction: Crafted with a thermoset polyester case for long-lasting performance.
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.
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