SWITCH SPECIFICATION: Normally open AC current sensing switch with a starting current range of 0.5-50A and frequency range of 40-400Hz, offering stable performance. SAFE MATERIAL: Features an ABS fireproof housing rated 94V-0 for high safety, long service life, and reliable operation. ADVANCED DESIGN: Utilizes passive power supply technology for output detection, monitoring, protection, and alarm functions. EASY OPERATION: Operates based on the principle of electromagnetic mutual inductance for safe, simple, and convenient monitoring of electrical equipment. INDICATOR LIGHT: Equipped with a red and green indicator light; red indicates the switch is closed, green indicates the switch is open. Item Type: AC Current Switch Starting Current: 0.5-50A Frequency Range: 40-400Hz Startup Time: Within 0.1s Switch Contact Capacity: Maximum 0.3A at 130Vac/dc Overload Capacity: +100% at 50A Product Dimensions: Height: Approx. 42mm (1.7in) Width: Approx. 43.7mm (1.7in), 63.7mm (2.5in) Thickness: Approx. 25mm (1in) Threading Hole Diameter: Approx. 8.5mm (0.3in) Indicator Light: Red, Green Installation Type: Flat Mount Housing Material: Fireproof ABS (94V-0) Operating Temperature: -10°C to 55°C Storage Temperature: -20°C to 65°C Operating Humidity: 0–95% non-condensing IP Rating: IP30 Package Includes: 1 x AC Sensing Switch 1 x User Manual