Preventing misoperation: Where sudden transient or temporary overvoltage occurs in the line, the protector will not generate misoperation; when the line suffers instable voltage or sudden power recovery after sudden power disruption due to loose contact or other fault, the protector will not close the circuit; 

Reliable operation: Protection is characterized by inverse time lag operation with operating time≤1s; 

Wide scope of voltage protection: 0~450V; in case of maximum fault voltage, the protector itself will not be damaged; 

Safer, impulse withstand voltage: 4kV (conforming to the safety standard of category Ⅲ electrical apparatus); 

Condition indication: The protector has the LED to indicate the operating state, where green is normal voltage indication, and red is overvoltage or under voltage indication; 

The product is easy for installation with cable from bottom feed; The product only has 27mm with small size; 1.7 External modular design, DIN rail mounting