The Ble Sea Systems 285-Series 30A Surface Mount Circuit Breaker, model 7181-BSS, is a great choice. It can directly replace 185-Series Circuit Breakers. Its visible reset lever clearly shows the open condition. It's ignition protected, making it safe for gasoline-powered boats. It meets SAE J1171 external ignition protection requirements and is weather-resistant. This unit combines switching and circuit breaker functions. It's 'Trip Free', so it can't be held closed after tripping. Note: Don't use it as a switch in high inrush current situations. Specifications: 30A amperage, 48V DC maximum voltage, surface mount, thermally responsive bi-metal blade circuit breaker type, 50 in-lb (5.65 Nm) terminal stud torque, 3000A interrupt capacity at 48V, -40°C minimum operating temperature, 85°C maximum operating temperature, Type III - switchable/manual reset - trip free circuit breaker class, and M6 terminal stud (accepts 1/4' Ring Terminal).
Using this 30 Amp Blue Sea 285-Series surface-mount circuit breaker is easy. First, make sure it's the right fit for your application. It can directly replace 185-Series circuit breakers, so just install it in the same place. The visible reset lever helps you quickly check the breaker's status. If it trips, don't try to hold it closed because it's 'Trip Free'. Also, don't use it as a switch when there are high inrush currents. For maintenance, keep it in a dry place as it's weather-resistant but still needs protection from extreme conditions. Check the terminal stud torque regularly to ensure a good connection. The breaker operates well between -40°C and 85°C, so avoid using it outside this temperature range.
