Features Self-powered AC current sensing switch: Made of self-extinguishing ABS material, this switch requires no external power supply and can adjust AC current from 0.5A to 200A, providing energy-efficient operation. Intuitive LED status indicator: The switch features an LED indicator for clear and convenient status monitoring, enhancing operational visibility. Its high-power MOS tube design ensures reliable and non-contact switching. High-performance design with no limits: With a through-core structure and 2000V isolation withstand voltage, this switch offers unlimited on-off cycles, millisecond-level response speed, and less than 1% hysteresis, suitable for use in strong magnetic field conditions. Versatile load capacity: Capable of handling a maximum AC and DC load of 0.3A at 135V AC/DC, this switch ensures reliable performance and stability, making it suitable for various industrial control equipment and power monitoring applications. Precision and longevity: Boasting high accuracy, stable performance, and a long service life, this current sensing switch is an ideal choice for automatic industrial control equipment and power monitoring needs. Specification: Item Type: Current Mutual Inductance Switch Material: Plastic Model: SZC03-NO-F-CH Switch Type: Normally On Current Jump Value: Not Adjustable Power Supply: Self-Powered Input Through-Core Current: 0.5-200A AC Rated Load: 0.3A at 135V AC/DC (Can not be exceeded in any case) Minimum Value of Switch Conduction: 0.5±0.2A The Maximum Overload of the Through-Core Current: 200%, the through-core current cannot exceed 200% of the rated value Accuracy: 10% Power Consumption: ≤1W Maximum Leakage Current: ≤1mA Hysteresis: ≤1% Response Time: ≤200ms Working Temperature: -30~70℃ Humidity: 0-95% (No Condensation) Square Bore Diameter: Approx. 20 x 20mm/0.8 x 0.8in Application: Widely used in substations, frequency conversion speed regulation devices, inverter devices, electrolytic plating, electric locomotives, street lamp monitoring, coal mines and other automation industries that require current monitoring. Product Introduction: SZC03 series AC current induction switch is designed and produced to solve AC current monitoring. It uses the principle of mutual inductance to isolate AC current by inducing AC through-core current, output a normally open or normally closed switching signal, and directly control various automated industrial control equipment Compared with traditional transformer, thermal protector and other devices, using this device can not only obtain more accurate and timely control effects, but also greatly simplify design. Package List: 1 x Current Mutual Inductance Switch Package List 1 x Current Mutual Inductance Switch