Description: High amp thermal trip circuit breakers with a manual reset switch, suitable for use on auxiliary DC electrical systems, for use in harsh environments, like motorsport, to provide for protection in the event of current overload or short circuit. Switchable for surface mount circuit breakers typically found in auxilliary and accessory circuits in trucks, buses, motorhomes & marine systems. Sealed, waterproof unit suitable for use in engine compartments and Bilge area's. Manual trip switch enables quick disconnecting of the circuits in case of emergency. Connection Stud Size - M6 x 2 - Nuts supplied with for integral lock washers to prevent loosening due to vibration. Specification: Type: Manual Reset Switch Specifications:30A/40A/50A/60A,/80A/100/150A/200A/250A/300A(Optional) Voltage rating: 12-48V DC Interrupt rating: 3000A@30V DC Operating temperature: -32°C to 82°C Storage temperature: -34°C - 149°C Number of Poles: 2 for Weatherproof rating: IP67 Housing is thermal plastic UL rated 94V0 High Amp Ratings. Color: Black Size: Approx.74 x 49mm/2.9 x 1.9 inch Package Includes: 1x Manual Reset Switch Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.