Color:WF100A WOHHOM Waterproof 100 Amp Circuit Breaker -- Critical protection for your system! Suitable for car stereo/video systems, boats, trucks, buses, RVs, ATV winches, marine, and DC audio amplifier system overload protection. How it works? 1) When the system is overloaded or short-circuited, the breaker will trip and save your equipment. 2) You don't need to replace fuses, the system can be reset with a simple switch, which also offers safe and immediate system shutdown. Function: High current circuit breaker, to protect your system. Prevents overcurrent and stops power surges from damaging amplifiers. Water-resistant housing, splash and dustproof. Unique push-button reset can also be used as a kill switch. Self-testing, manual control, and easy to use with manual reset arm. Surface mount: can be mounted on a panel or firewall. Manual reset, continue to use, very convenient. Models: 30A, 40A, 50A, 80A, 100A, 150A, 200A, 250A, 300A. Easy installation, with waterproof mounting cover protecting the 1/4-28 threaded bolt for isolation. Specifications: Amperage: 100A Voltage: DC 12V - 36V (Max) Size: 72mm x 46mm x 31mm Operating Temperature: -32°C to 82°C (-25°F to 180°F) Storage Temperature: -34°C to 149°C (-30°F to 300°F) Surface mount, protective bolt insulator included Red manual reset button Package Includes: 1 x 100A Circuit Breaker Note: 1. Press the button correctly to avoid damaging the circuit breaker. 2. Order and use the circuit breaker with the correct operating temperature to avoid it getting too hot and stopping working.