1. Self-powered, no external supply required.2. Action current 0.2-30A AC, adjustable with a potentiometer.3. LED indicator can conveniently and intuitively indicate the working status of the switch.4. High- MOS tube contactless electronic switch.5. The switch has on the number of opening and closing, and the reaction speed reaches the level.Straight-through structure design, isolation withstand voltage up to 2000V.Hysteresis is less than 1% and can be used under strong magnetic conditions.The outer casing is made of self-extinguishing material ABS.Suitable for AC current measurement and monitoring, AC motor overload protection, electronic switch of automatic control system and so on.Model: SZC23-NO-AL- supply: Not requiredRated load: less than equal 0.5A 240V AC/DCInput current: 0.2-30A ACSwitch on minimum: 0.50.2AMaximum overload: 100%Leakage current: less than equal 0.1AAccuracy: 1%Hysteresis: less than equal 1%Response time: less than equal 200msRepeatability: 100%Working temperature: -20-60CelsiusWaterproof: IP30Hole diameter: 10mm / 0.4inColour:blackMaterial:Metal + PlasticSize:65 x 25 x 47mmPackage Contents:1 x Current Sensing SwitchOnly 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.