Function: This circuit breaker can prevent the amplifier from being damaged by overload current or voltage. At the same time, the power supply can also be protected to avoid battery rupture and explosion caused by a short circuit. Specifications: 12-48V compatible with all 12V/24V systems. Ambient temperature: -32 Celsius to 82 Celsius (-80 Fahrenheit to 180 Fahrenheit). Manually reset the circuit breaker, which can replace the inline fuse holder, and button reset can also be used as a kill switch. Protect your trolling motor from electrical damage, prevent excessive current, and prevent power surges that consume amperes of current. Application: Suitable for overload protection of car audio/video systems, boats, trucks, buses, ATV winches, marine and DC sound amplifier systems. Types: 100A voltage: DC12-48V Material: plastic colour: black Package Contents: 3 x Circuit breaker Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.