DC 1200A overload protection current for relay: This current transformer induction switch covers a wide range from 1 to 200 A, providing reliable overload protection. It has a capacity of 5 A at 240 V AC/DC and requires no external power supply for PLC signal transmission. Thick fireproof shell: Built with a thick, fireproof and flameretardant shell for enhanced strength, resistance, and stable performance in demanding environments. Perforated isolation induction: Outputs a switching signal when the current reaches the set value and can drive relays, current contactors, or send switching signals to PLCs. The switch automatically resets when the current falls below the set value. Adjustable threshold with conductivity terminal block: Adjustable threshold settings and a conductivity terminal block. Provides large switch capacity, fast response, no mechanical noise or opening/closing sparks, and no limit on the number of repetitions. Use scenarios: Motor protection in manufacturing lines: Detects overcurrent and triggers control relays or PLC signals to shut down or protect motors and circuitry. PLCbased automation: Interfaces with PLCs to monitor current and control equipment without needing an external power supply. Electrical cabinet protection and signaling: Drives relays or contactors for load shedding, alarms, or safe shutdown in critical power distribution or switchgear setups.