Product Description：
Adopting Class Ⅰ SPD, it has hermetical GTD technology to combine “3+1” circuit, applied in TT system, generally installing in main distribution panel or cabinet, designed according to IEC61643-1/GB 18802.1

Main character：
1. Green light indicates normal and red light indicates fault for operation

2. Built-in circuit breaker, prewired with SPD, easy for installation 

3. Impulse counter function, recording the lightning events
4. Water resistant housing, suitable for sheltered outdoor application

Parameters：