1. When the load exceeds the rated current, this switch reset button will automatically break the circuit and thus play a role in protecting the line. 2. This switch can be reset after disconnection for a while, then you can press the reset switch to use it again 3. Compact design allows for high-density circuit protection configuration 4. Made of durable plastic , high quality and long service life 5. It is widely used in automobile, industrial and ocean industry. Specification: Features: When the load exceeds the rated current, this switch reset button automatically breaks the circuit and thus plays a role in protecting the line. This switch can be reset after disconnected for a while, then you can press the reset switch to use it again. The compact design allows for high-density circuit protection configuration. Made of durable plastic, high quality and long service life. It is widely used in automobile, industrial and maritime industry. Specification: Condition: 100% New. Rated Voltage: DC 50V, AC 125-250V, 50/60Hz. Current: 5A/8A/10A/15A/18A/20A/30A (optional) Material: plastic, metal Color: black Size: show as picture Package weight: approx. 26g. Package list: 1*overload protector