Suitable for TT,TN power supply system
Inside protection of over-current and auto fuse
The panel shows the state of protection

    OBVF series single-phase and three-phase surge protection box is suitable for B, C, D grade over-voltage protection, mainly installed in household low-voltage distribution box, when the power supply system shocked by over-voltage or lightning, it'll rapidly transmit in ns and limit the over-voltage in safe range and protect the electric equipment, simultaneity discharge the surge into earth.

Main Technical Parameters

Dimension

Installation