The Allen-Bradley MSR.DP (Catalog No. R-M) is a versatile safety relay designed for monitoring safety devices such as emergency stop buttons, safety gates, and light curtains. It provides both instantaneous and delayed safety outputs, ensuring controlled stopping of machinery in hazardous situations. The relay supports various input configurations and offers both automatic/manual and monitored manual reset options.

Key Features:

Model: MSR.DP
Brand: Allen-Bradley
Catalog Number: R-M
Power Supply:  V AC/DC
Safety Inputs: N.C., N.C., or light curtain
Reset Modes: Automatic/manual or monitored manual
Instantaneous Safety Outputs: N.O.
Delayed Safety Outputs: N.O.
Delayed Auxiliary Output: N.C.
Output Ratings:
- AC-:  A at  V AC
- DC-:  A at  V DC
Response Time: Approximately  ms
Recovery Time: Approximately  ms
Mounting:  mm DIN rail
Housing Width:  mm
Operating Temperature: – °C to + °C
Enclosure Protection: IP (housing), IP (terminals)
Standards Compliance: EN -, ISO -, IEC/EN -, IEC --, IEC --

Allen-Bradley - MSR138.1DP - Safety Relay, 2 N.O. Instantaneous, 2 N.O. Delayed