The SZT20-CH-420E AC current transducer provides real-time isolated measurement of AC current in the grid or circuit and converts it to a 0-5V/0-10V or 4-20mA DC current output signal. It can be mated with various AD and constitute various digital centralized acquisition systems. Or output to the PLC to form an automatic control system, or to match the traditional analog and digital indicating instruments, display the measured value.Features:1. Mutual inductance current monitoring, high current detection accuracy, stable performance, safe isolation of input and output.2. The measured current AC: 0-10A / 20A / 50A, 0-100A / 150A / 200A can be selected.3. Output signal DC: 0-5V / 0-10V /4-20mA three forms are available.4. Installation and using are easy and convenient, there is no need to connect the dc series into the circuit during measurement.6. Magnetic hysteresis less than 1%, can be used in strong magnetic field conditions.7. The outer casing is made of self-extinguishing material, safe and durable.8. It is used for AC current monitoring, detection, current overload protection, and is also used as an electronic switch for automatic control systems. 10. It has the characteristics of strong overload ability, high precision, high isolation, high security, low power consumption and strong anti-interference ability.Specification:Product Name: AC Current TransmitterModel: SZT20-CH-420EPower supply:Current output type requires external DC: 24V ± 10%Input feedthrough current (AC): 0-10A / 20A / 50A (SZT15 series) 0-100A / 150A / 200A (SZT20 series)Output Type (DC):Current output type: 4-20mASwitch on minimum:0.5±0.2A (round type)1.5±0.2A (clamp type)Maximum current through current: 200%, the feed current cannot exceed 200% of the rated valuePower consumption: ≤1WTape: ≤1%Accuracy: ±1%Maximum leakage current: ≤0.1mALinearity: 10%-100%Response time: ≤200msThrough the heart wire diameter: 0.35-20mmWorking temperature: -20-60 °CWorking humidity: 5-95% (no condensation)Housing material: self-extinguishing material ABS (Cycolac 94v-0)Package list:1 * AC Current TransducerWorking principle:1. Based on electromagnetic induction, inductive current will be generated when the current in the circuit changes. Transform large current into standard small current through transformer,2. Through relevant signal processing circuit and output control circuit, the dc current signal of 0-5/10V or 4-20mA can be output and transmitted to the next level system.