Allen - Bradley 440R - D23171 is a safety relay. The main parameters are as follows:
Model: 440R - D23171
Manufacturer: Allen - Bradley
Relay Type: Safety relay, MSR125HP
Power Supply: 24V DC
Housing Width: 22.5 mm
Action Time: 0.5 sec
Output: 2 safety outputs, 2 N.O. (normally open) immediate safety outputs
Input: Two - hand control
Reset Mode: Automatic/manual reset
Rated Category: CAT 4
Terminals: Removable