Blue Sea 7141 187 - Series Thermal Circuit Breaker - 70Amp [7141]

The 187 - Series Thermal Circuit Breakers are surface - mount devices with a 70 Amp capacity. Product number is 7141. These breakers combine switching and circuit protection in one unit. All components meet SAE J1171 external ignition protection requirements. The operation is clear with a single lever. It has a 'Trip Free' design that can't be held 'ON' during a fault current. It's waterproof, has recessed mounting holes for a clean look, and large clearances around terminal studs to accept heavy - gauge wire lugs. The 5/16 terminals offer high - torque connections. The large lever, with vertical/horizontal orientation, shows the trip status. It's ignition - protected, safe for gasoline - powered boats. Specifications include a Type III switchable/manual reset/trip - free circuit breaker class, a thermally responsive bi - metal blade type, a thermoset polyester case material, a 48 Volts DC maximum voltage rating, and different interrupt ratings at various DC voltages. The operating temperature range is from - 25°C to + 82°C. WARNING: This product exposes you to chemicals like di(2 - ethylhexyl)phthalate (dehp), known in California to cause cancer, birth defects, or other reproductive harm. Check P65Warnings.ca.gov for more info. Amperage is 70a, box dimensions are 3'H x 5'W x 8'L, and it weighs 0.6 lbs. UPC is 632085071417.

Using this Blue Sea 7141 thermal circuit breaker is straightforward. First, make sure to install it in a suitable location on your boat or electrical system, following the recessed mounting holes for a clean and secure fit. Connect heavy - gauge wire lugs to the terminal studs as there's plenty of clearance around them. The single lever on the breaker is used to operate it. You can easily tell if the breaker has tripped by looking at the orientation of the large lever. When the current exceeds the 70 Amp limit, the breaker will automatically trip due to its 'Trip Free' design. Remember, this breaker is only for DC systems with a maximum voltage of 48 Volts DC. It can handle different interrupt ratings depending on the voltage, so be aware of your system's voltage. Keep the breaker within the operating temperature range of - 25°C to + 82°C. Since it's waterproof, it can withstand some exposure to water, but avoid submerging it. As for maintenance, check the connections periodically to ensure they are tight and there's no sign of corrosion. This product contains chemicals that can be harmful, so avoid direct contact and follow the safety warnings. If you have any concerns, refer to P65Warnings.ca.gov for more information.