Features Control various industrial automation equipment, flashlights, buzzers, relays, microcontrollers or other electrical charging devices. An ideal choice for automated industrial equipment and power monitoring. Using the principle of electromagnetic mutual current inductance, the advanced output detection, monitoring and protection alarm products developed by power free technology are adopted. Widely used in substations, frequency conversion speed control devices, inverters, electrolytic plating, electric locomotives, street light monitoring, coal mining and other automation industries that require current monitoring. Compared with traditional appliances, thermal protectors and other devices, it has the advantages of high accuracy, stable performance and long service life. The current sensing switch is for safety, monitoring or simple and convenient detection of current in electrical equipment. Specification: Switch type: normally open/normally closed (optional) Power supply: self-powered, no external power is required. Starting current/frequency range: 0.2-30A, 40-400Hz Start-up time: <0.1 seconds. Switch Contact Capacity: Maximum: 0.5A to 12-240VAC/DC Overload capacity: +100% to 30A Thread hole diameter: 8 mm Indicator light: red and green Installation form: 35mm DIN guide rail Shell Material: Flame Retardant ABS Operating temperature: -10~55°C Operating humidity: 0-95%, non-condensing IP Rating: IP30 Size: 52 x 68 x 25 mm/2.05 x 2.68 x 0.98 inches. Package list: 1 Detection Switch 1 x user manual (Chinese English). Package List