Stable performance: Designed for precision and reliability, this current sensing switch simplifies setup and delivers dependable operation, with improved performance compared with traditional transformers and thermal protectors. Integrated power supply: Builtin, selfsufficient power source runs without external power, and remains functional in environments with strong magnetic fields. LED indicator: Clear LED shows operating status and lets you monitor input current in the 2 to 30 A AC range at a glance. Robust construction: Tube technology and selfextinguishing ABS housing provide resistance to heat, acids, and alkalis, for durability and safety. Practical use scenarios: In a control panel to monitor line current up to 30 A and trigger downstream circuits as needed. In automation or lab setups where independent current sensing is required without an external power source. In demanding environments with magnetic fields or heat, where a compact, selfpowered solution is advantageous.