1、Standard modular construction, rail mounted. 2、LCD display shows voltage value, fault status, parameter setting. 3、Real-time monitoring of three-phase overvoltage, undervoltage, phase error, phase loss faulty. 4、Powered by the measuring circuit, no additional auxiliary power required. 5、Timekeeping and counting function. Features: Standard modular construction, rail mounted. Real-time monitoring of three-phase overvoltage, undervoltage, phase error, phase loss faulty. Powered by the measuring circuit, no additional auxiliary power required. Adjustable overvoltage value, undervoltage value and action time. Timekeeping and counting function. Specification: Setting Parameters: Overvoltage: 200-600V Undervoltage: 150-500V Over and Under Pressure Return Difference: 1-20V Unbalance Rate: 1-50% Unbalance Return Difference: 1-10% Unbalance Delay: 0.1-30s Reset Delay: 0.1-999s Contact Form: A group of conversion, a group of normally closed Contact Capacity: 6A AC250V (resistive) Mount Method: 35mm DIN rail Typical Application: Motor, Fan, Pump, Air Compressor, Hoist, Vehicle, Crane, Elevator, Machine Tools, Central Air Conditioning, Refrigeration Equipment, Laser Equipment, Industrial Control System Package List: 1 x Phase Sequence Protector Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.