BT 5L CM 275/40 3+1

Product Description：
Adopting Class Ⅱ SPD to combine “3+1” circuit, protecting low voltage equipment from surge damages,  applied in TT system, 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, and thermal disconnection device, when the fault occurred, the thermal disconnection device will cut off the SPD from the power net, the green window will change
3. Impulse counter function, recording the lightning events
4. External wiring terminal, easy for connection, suitable foe indoor application

Parameters：