FeaturesSelf-Powered Operation: This normally closed current sensing switch requires no external power supply, offering convenience and flexibility in installation and use.Adjustable Action Current: With a range of 0.5-200A AC and a potentiometer for adjustment, this switch provides precise and customizable current sensing capabilities for diverse applications.Intuitive LED Indicator: The built-in LED indicator allows for convenient and intuitive monitoring of the switch's working status, enhancing operational efficiency and ease of use.High-Power MOS Tube: Equipped with a contactless electronic switch featuring a high-power MOS tube, ensuring reliable and durable performance in demanding industrial environments.Versatile Application: Widely used in the automation industry for current monitoring in applications such as substations, variable frequency speed control devices, inverter devices, electrolytic electroplating, and street lamp monitoring.Specification: Model: SZC03-NC-AL-CH Power supply: Not required Rated load: 0.3A@135V AC/DC Input straight-through current: 0.5-200A AC Switch on minimum: 0.50.2A Maximum overload of straight-through current: 200% Accuracy: 10% Power consumption: 1W Leakage current: 1mA Hysteresis: 1% Response time: 200ms Working environment: -30~70, 0-95%RH Dimensions: 62*90*25.5mm / 2.4*3.5*1.0in Hole diameter: 20mm / 0.8in Package weight: Approx. 84g/2.96oz Package list: 1 * Current Sensing Switch Note: 1. Due to the difference between monitors and light effects, the pictures may not reflect the actual color of the item. 2. Please allow slight error due to manual measurement. Thanks for your understanding.Package List