Mutual inductance current monitoring with security isolation between input and output. Self-powered design. Monitored current range up to 30A, with adjustable monitoring threshold from 0.2A to 30A. Hysteresis less than 1%. Suitable for use in strong magnetic environments. Non-contact electronic switch with fast response and unlimited switching cycles. Enclosure made of environmentally friendly, flame-retardant PC material. Monitoring current: 0.2–30A AC Contact rating: 0.3A @ 240V AC/DC Aperture diameter: 10mm Dimensions: 65 x 25 x 47mm Maximum leakage current: 0.1mA Maximum overload capacity: 100% Operating temperature: -20°C to 55°C Hysteresis: less than 1% Operating principle: Normally open (Model M3050): When the current in the aperture exceeds the set threshold, the red LED turns on and the output closes; when the current drops below the threshold, the green LED turns on and the switch opens. Normally closed (Model M3056): When the current in the aperture exceeds the set threshold, the green LED turns on and the output opens; when the current drops below the threshold, the red LED turns on and the switch closes. Color: As shown in picture Material: Plastic Package includes: 1 x Current detection switch induction relay Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement tolerance: ±1–3cm.