STP 5-3 - Marker carriers

Marker carriers, snaps into the ST 2,5-3L three-level spring-cage terminal block, can be marked with UC-TM 5, UC-TMF 5, UCT-TM 5, UCT-TMF 5, ZB 5, or ZBF 5, gray, unlabeled, mounting type: plug in, lettering field size: 5 x 10.5 mm