Emergency use: This kind of circuit breaker helps you turn off the power in emergency, ensuring your security and avoiding electricity problems, you can order according to your need. Wide use: The circuit protector is suitable for trucks, cars, boats, marines and other vehicles, powering off the attachments and avoiding short circuit. Long-lasting: This marine circuit breaker is made of metal and plastic, durable and sturdy, serving you for a long time without being cracked or broken. Portable & waterproof: This circuit breaker is small and lightweight that is easy to store and carry, and it is IP67 waterproof, suitable for different weathers and environments. Manual control: You can reset the fuse and circuit manually, and you can press the long handle to the regular position after repairing, saving strength for you. Material: plastic, metal. Color: black. Size: approx. 74x49x44mm/2.91 x 1.92 x 1.73inch. Rated data: 30A 40A 50A 60A 70A 80A 100A 120A 150A 200A 250A 300A(optional). Rated voltage: 12-48V. Work temperature: -32℃-83℃. Waterproof: IP67. Storage temperature: -34℃. Installation hole: ul 94v0. How to use: 1.open circuit protection: when the current reaches the turn-off value, the long cable will automatically disconnect and turn off the power supply. Generally it is short circuit. After repairing, press the long handle back to its regular position. 2. Manual power-off: Disconnect the circuit and press the red button on the fuse. And the long cable automatically open to power off the power supply. Connect as above, press the long handle back into place. Due to the light and screen difference, the item's color may be slightly different from the pictures. Please allow a slight deviation for the measurement data and make sure you do not mind before ordering. 1 piece circuit breaker. Emergency use: This kind of circuit breaker helps you turn off the power in emergency, ensuring your security and avoiding electricity problems, you can order according to your need. Wide use: The circuit protector is suitable for trucks, cars, boats, marines and other vehicles, powering off the attachments and avoiding short circuit. Long-lasting: This marine circuit breaker is made of metal and plastic, durable and sturdy, serving you for a long time without being cracked or broken. Portable & waterproof: This circuit breaker is small and lightweight that is easy to store and carry, and it is IP67 waterproof, suitable for different weathers and environments. Manual control: You can reset the fuse and circuit manually, and you can press the long handle to the regular position after repairing, saving strength for you.