5SD7444-1
Arrester combinations, Requirement category B and C , type 1 and 2, class I and II, For TN-S systems and TT systems With remote signaling, 4 Pole, Discharge Capacity rated value = 100mA
Arrester combinations, Requirement category B and C , type 1 and 2, class I and II, For TN-S systems and TT systems With remote signaling, 4 Pole, Discharge Capacity rated value = 100mA