Hyuduo Adjustable Current Sensing Switch, Switch Normally Open AC 0.2 30A, Monitoring Relays

Easy To Use: Current sensing switch is self-powered, requires no external power supply, operates at 0.2-30A AC, and can be adjusted with a potentiometer. Action current 0.2-30A AC, adjustable with a potentiometer. LED indicator can conveniently and intuitively indicate the working status of the switch Widely Used: it is suitable for AC current measurement and monitoring, AC motor overload protection, automatic control system electronic switch. High-power MOS tube contactless electronic switch.