Current monitoring with mutual inductance and secure isolation for input/output. Self-powered operation. The monitoring range is up to 30A, with an adjustable threshold from 0.2A to 30A. Hysteresis is under 1%, suitable for strong magnetic environments. Non-contact electronic switch with fast response and unlimited on/off cycles. Made from eco-friendly, flame-retardant PC material. - Monitoring current: 0.2-30A AC - Contact capacity: 0.3A @ 240V AC/DC - Perforation line diameter: 10MM - Dimensions: 65x25x47MM - Maximum leakage: 0.1MA - Overload capacity: 100% - Operating temperature: -20 to 55��C - Hysteresis: less than 1% Operating principle: Normally closed: M3056. When current exceeds the set value, the green light turns on and the output signal opens; when at the set value, the red light illuminates and the switch closes. Color: As shown Material: Plastic Package Contents: 1 x Current detection switch induction relay Note: Light and display variations may cause slight color differences in the item. Measurement error is allowed within +/- 1-3cm.