Function and Scope of Application

The SPD backup protector is connected in series on the SPD circuit, and an internal current sorting channel device is used to achieve low current quick tripping at power frequency; High current lightning strike does not trip, achieving the function of power frequency low current SPD fire protection and continuous protection of lightning strike SPD; SCB products are only suitable for SPD circuit overcurrent protection, or backup current protection. Do not use them in other situations.

Main technical parameters

Outline dimension diagram