PT 4X1-BE - Phoenix Contact
Surge protection base element - PT 4X1-BE - 2839363; Base element for protective plug PT with protective circuit for 4 conductors of signal circuits grounded on one side, with bridge between the connections 3-4 (GND) and 9-10, for mounting on NS 35/7.5 and NS 35/15, housing width: 17.5 mm