Blue Sea Systems presents the 187-Series 60A surface mount circuit breaker (Model: 7140-BSS). It combines switching and circuit protection in one device. With a clear single lever for easy operation, it has a 'Trip Free' design that won't stay 'ON' during fault currents. It's waterproof and has recessed mounting holes for a clean look. The large clearance around terminal studs can accept heavy gauge wire lugs, and robust 5/16 M8 terminals offer high torque connections. The large lever in vertical/horizontal orientation shows the trip status. It's ignition protected, safe for gasoline powered boats, and meets SAE J1171 external ignition protection requirements. Note: Don't use it as a switch for high inrush currents. Specifications include 60A amperage, 48vDC max voltage, surface mount, thermally responsive bi-metal blade type, 75 in-lb (8.47 Nm) terminal stud torque, 5000A @ 12V, 3000A @ 24V, 1500A @ 42V interrupt capacity, -40° C min operating temperature, 85° C max operating temperature, thermoset polyester case material, Type III - switchable/manual reset - trip free circuit breaker class, accepts #10 (M5) screw for mounting holes, and 5/16' - 18 terminal stud size.
Using this Blue Sea 187-Series circuit breaker is easy. First, make sure to mount it on a flat surface using the provided mounting holes. Connect heavy gauge wire lugs to the terminal studs with the recommended torque. When you turn the lever, it will switch the circuit on or off. The lever's position also tells you if the breaker has tripped. Important: Don't use this breaker as a switch in situations with high inrush currents. For maintenance, check the breaker regularly for any signs of damage or wear. Keep it clean and dry, especially if it's installed on a boat. If it trips frequently, there might be an issue with the circuit, so it's a good idea to have it checked by a professional. Operating temperature should be between -40° C and 85° C to ensure proper functioning.
