Phoenix Contact PR1-BSC 300V ac/dc DIN Rail Relay Socket, for use with PR1 Series

2833521 is a green relay base for using with the PR1 range of miniature power or miniature switching relays with one or two contacts.
The 16mm screw connection relay socket can be mounted in any position.

• 16 mm wide
• Operating temperature range of -25°C to +85°C
• Screw connection with M3 thread
• 3 layer design

A relay base is simply just a module that a relay plugs into. Some modules can accept multiple types of relays and they're designed to be DIN rail mounted and incorporated into your automation, or industrial applications.