The a.c. voltage supply of fire and burglar alarm systems places especially high demands on surge protective devices. DEHNguard and DEHNrail which have a high discharge capacity due to their zinc oxide varistors meet these demands and ensure safe system operation. The fact that our surge protective devices are VdS-certified contributes to the high quality of our products.
The modular two-pole type 2 surge arrester for single-phase TN systems consists of a base part and plug-in protection module with floating changeover contact*.
The two-pole type 3 surge arrester consists of a base part and plug-in protection module with floating changeover contact.*