SZC23 series AC current sensing switch is designed and manufactured for AC current monitoring applications. It operates on the principle of mutual inductance to detect AC straight-through current, provide electrical isolation, and output a normally open or normally closed switching signal to directly control various industrial automation equipment such as lights, buzzers, relays, microcontrollers, or other powered loads. Compared to traditional current transformers, thermal protectors, and similar devices, this product enables more accurate and timely control while simplifying system design and reducing overall costs.Features: 1. Self-powered operation no external power supply required. 2. Adjustable action current range from 0.2A to 30A AC via built-in potentiometer. 3. LED indicator provides clear visual feedback of the switch status. 4. Utilizes high-power MOSFET for contactless electronic switching. 5. Unlimited mechanical switching cycles with millisecond-level response speed. 6. Straight-through design with isolation withstand voltage up to 2000V. 7. Hysteresis less than 1%; suitable for use in strong magnetic environments. 8. Enclosure made of self-extinguishing ABS material. 9. Ideal for AC current monitoring, AC motor overload protection, and automated control system switching applications.Specifications: Model: SZC23-NO-AL-CH Power Supply: Not required Rated Load: 0.5A @ 240V AC/DC Input Current: 0.230A AC Turn-On Threshold: 0.2A minimum Maximum Overload Capacity: 100% Leakage Current: 0.1A Accuracy: 1% Hysteresis: 1% Response Time: 200ms Repeatability: 100% Operating Temperature: -20C to +60C Water Resistance Rating: IP30 Dimensions: 65 x 25 x 47mm (2.56 x 0.98 x 1.85 inches) Hole Diameter: 10mm (0.4 inches) Package Weight: Approximately 56g (2.0 oz)Package List: 1 x Current Sensing SwitchNote: 1. Due to variations in monitor displays and lighting conditions, actual product color may differ slightly from images. 2. Please allow slight measurement deviations due to manual measurement.