The Blue Sea Systems 187-Series 135A surface-mount circuit breaker is a top - notch electrical device. It combines switching and circuit protection in one unit. With a clear single - lever operation, it's easy to use. Its 'Trip Free' design ensures safety during fault currents. This breaker is waterproof and has recessed mounting holes for a neat look. The large clearance around terminal studs can accommodate heavy - gauge wire lugs, and the robust 5/16 M8 terminals offer high - torque connections. The large lever with vertical/horizontal orientation shows the trip status. It's ignition - protected, making it safe for gasoline - powered boats and meets SAE J1171 external ignition protection requirements. Note: Don't use it as a switch for high - inrush current situations. Specifications: Amperage is 135A, maximum voltage is 48vDC, it's surface - mount, has a thermally responsive bi - metal blade, terminal stud torque is 75 in - lb (8.47 Nm), interrupt capacity varies with voltage, operating temperature ranges from - 40°C to 85°C, case material is thermoset polyester, it's a Type III switchable/manual reset - trip free breaker, mounting holes accept #10 (M5) screws, and terminal stud size is 5/16' - 18.
Using this Blue Sea 187 - Series 135A circuit breaker is straightforward. Just use the single lever to turn it on or off. It's designed to protect your electrical circuits automatically. When there's a fault current, it'll trip on its own. For installation, use #10 (M5) screws in the recessed mounting holes to give it a clean look. Make sure to connect heavy - gauge wire lugs to the terminal studs with the proper torque of 75 in - lb (8.47 Nm). Remember, don't use it as a switch when you expect high inrush currents. Keep it in an environment where the temperature is between - 40°C and 85°C. Since it's waterproof, it can handle some moisture, but try to avoid long - term submersion. Periodically check the connections to make sure they're tight. If it trips, don't just reset it right away. Find out what caused the fault first and fix it. This way, you can ensure the breaker works well for a long time.
