40KA AC 3 phase SPD surge protective device

3-phase 380V AC surge protective device series are SPDs suitable to 3-phase AC power systems and shunt connection at the power input terminals for protection of equipment from surge and transient over-voltage caused by the outside environment (such as lightning, EMI, switching effects of the system) or internal environment (power on and off, startup or shut off of inductance and capacitance loads, etc.) with the following main features.

• 3 plus 1 configuration;
• High current discharge ability, quick response, low residue voltage, safe and high reliability
• Plastics shell of flame retardant materials (Class UL94-V0) can effectively prevent the occurrence of fire ;
• Automatic fault release device for over-current, over-heating protection;
• Remote signal alarm connectors and local alarm color indication window;
• Hot plug-in installation approach supports maintenance while in operation and thus do not interrupt the power supply in the plug-in process;
• Easy installation, it can fix on 35mm DIN rail;