Automatic circuit breaker 30-300 A IP67 Waterproof 12 V- Fuse With Manual Reset 200 A. : High current thermal trigger circuit breakers with manual reset circuit breaker, suitable for use in DC auxiliary electrical systems, for use in harsh environments such as motor sports, in providing protection in case of current overload or short circuit Switchable surface mount circuit breakers, usually used in auxiliary and auxiliary circuits in trucks, buses, motorhomes and marine systems Sealed, waterproof unit suitable for use in engine compartments and bilge zones Manual emergency stop allows you to quickly disconnect circuits in case of failure Connecting pin size - M6 x 2 - Nuts supplied with built-in safety washers to prevent loosening due to vibration - Inner mesh panties Type: Manual reset switch Specifications: 30A / 40A / 50A / , / 80A / 100 / 150A / 200A / 250A / 300A (optional) Rated Voltage: 12- DC Interrupts: 3000 A 30 V DC Operating temperature: -32C to 82C Storage temperature: -34C - 149C Number of Poles: 2 Weather resistance: IP67 The housing is made of thermoplastic plastic with a rating of UL 94V0 High amps. BLACK Size: about 74 x 49 mm / 2,9 x 1,9 inches contains: 1x manual reset switch