new and high quality. High precision, more stable and long service life It is an perfect choice for automated industrial equipment and store monitoring. This AC current sensing switch is designed and manufactured to solve the AC current monitoring. It uses the principle of mutual inductance to sense the AC current through the AC, isolate the AC current, and output a normally closed switching signal to di Widely used in substation, frequency conversion speed control device, inverter device, electrolytic plating, electric locomotive, street lamp monitoring, coal mine and other automation industries requiring current monitoring Specification: Condition: New Model: SZC26-NC-AL-CH External Power Supply: No Need, Product Self-Inductive Power Supply Switch Type: Normally Closed Input Through Current: AC 1-100A Threshold Point Range: 1-100A AC Adjustable Switch Rated Load: AC/DC 0.3Aat240VAC Maximum Leakage Current: Less than 0.1A Response Time: Less than 200ms Hole Diameter: dia. 20mm NC Normally Closed Type Indicator Light Status: Red and green light off less than Setting Value Close red light on more than Setting Value off green light off Colour:Black Material:Plastic + metal Size:About 80 * 27 * 70mm Package Contents: 1 * Current Sensing Switch Only the above package content, other products are not included. Note: Light 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.