Fangrui Product Details Mutual Inductance Current Monitoring, Security Isolation Of Input And Output, Self Power The Range Of The Monitored Current Is Up To 30a;the Monitoring Threshold Is Adjustable Within 0.2-30a. Hysteresis Is Less Than . It Can Be Used Instrong Magnetic Environment. Non-contact Electronic Switch With Fast Reaction And Unlimited Number Of On-and-off Operations. The Shell Is Made Of Environmentally-friendly Flame-retardant Pc Material. Monitoring Current: 0.2-30a Ac Contact Capacity: 0.3a@240v Ac/dc The Diameter Of The Perforation Line: 10mm Dimensions: 65x25x47mm Maximum Leakage Value: 0.1ma Maximum Overload Capacity: Operating Temperature: -20-55celsius Hysteresis: Less Than Operating Principle: Normally Closed: M3056 When The Current Of The Perforation Line Exceeds The Set Value, The Green Light Turn On And The Output Signal Open ; When The Current Is Below The Set Value, The Red Light Turn On And The Switchs Close. Colour:as Shown Material:plastic Package Contents: 1 X Current Detection Switch Induction Relay 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.