Phoenix Contact – ZB 18,LGS:L1-N,PE
Zack marker strip – ZB 18,LGS:L1-N,PE – 0811846; Zack marker strip, Strip, white, labeled, printed horizontally: L1, L2, L3, N, PE, mounting type: snap into tall marker groove, for terminal block width: 18 mm, lettering field size: 10.5 x 17.4 mm