Pilz PNOZm Safety Relay Rack Extension Module Connector 95425 ERNI 244873

You will find that the Savant Racepoint RPE brand brings a trustworthy feel to general purpose relays.

Pilz ERNI MO39 Safety Relay Rack Extension Module Connector 244873

What stands out about this relay is the way the General-Electric text is cleanlyA nice touch is the General-Electric mark near the pins, which helps with orientation.