Efficient protection against transient overvoltages for single-phase power supply lines with neutral type TT, using a metal oxide varistors and gas discharge tubes. Medium protection according to coordinated stages protection recommended in Regulation of Low Voltages (RBT ITC23). Specially prepared to be installed in houses according to ITC- 25 from REBT.
Tested and certified as Type 2 and 3 according to regulations EN 61643-11 and GUIDE-BT-23 from REBT. Suitable for Categories I, II, III and IV equipment according to ITC-BT-23 from REBT.