Blue Sea 285 Series 100 Amp Thermal Circuit Breaker 7187Blue Sea Systems 285 Series 100 Amp Thermal Circuit Breaker 7187 Surface mount thermal circuit breaker combines switching & circuit protection into one device. 285 Series circuit breaker 100 amps DC rating Bright yellow reset lever for visual identification of open circuit Ideal for main circuit protection of medium size battery banks Combines switching and circuit protection into a single device Trip free design cannot be held ON during fault current