1SBH136001R2031

ABB NFZ31E-20 (1SBH136001R2031) is a 4-pole auxiliary contactor / contactor relay with 3 Normally Open and 1 Normally Closed contacts. It is designed for industrial auxiliary and control circuits, including MCC panels, PLC control systems, interlocking circuits, automation panels, machine control, signalling and status feedback.

The NFZ series uses an electronic coil interface with reduced holding consumption, high tolerance to voltage variations and integrated surge suppression. The NFZ31E-20 version operates specifically from 12–20V DC, with polarity-sensitive A1+ and A2− terminals.