Mutual inductance current monitoring with secure input-output isolation and self-powered design. Monitored current range up to 30A; monitoring threshold adjustable within 0.2–30A. 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 (M3050): When the current through the aperture exceeds the set value, the red light turns on and the output contact closes; when the current is below the set value, the green light turns on and the switch opens. Normally closed (M3056): When the current through the aperture exceeds the set value, the green light turns on and the output contact opens; when the current is below the set value, the red light turns on and the switch closes. Color: As shown Material: Plastic Package Contents: 1 x Current detection switch induction relay Note: Lighting and display differences may cause slight color variation between the image and the actual item. Measurement error allowed is +/- 1–3cm.