Skip to main content Skip to search Skip to main navigation
Wishlists
You have no wishlists yet

Product information

The Allen-Bradley Guardmaster MSR127TP (440R-B23211) is a versatile safety relay engineered for industrial machinery safety. It monitors E-stop buttons, interlock switches, and optoelectronic protective devices (OSSD). Operating on 24V AC/DC, the unit features 3 N.O. safety relay outputs and 1 N.C. auxiliary contact. Equipped with fixed screw terminal connections, it delivers a dependable solution for 35 mm DIN-rail installation.
Show more Show less
Weight: 0.1 kg
Country of Origin: Germany
Show more Show less

Product Features

The Allen-Bradley Guardmaster MSR127TP (Catalog No. 440R-B23211) is a proven, compact safety relay designed for reliable evaluation of safety sensors and command devices in automated industrial environments.

Technical Specifications

  • Safety Rating: PL e (ISO 13849-1), SIL 3 (IEC 62061 / IEC 61508), Cat. 4
  • Supply Voltage: 24V AC/DC
  • Safety Inputs: 1 N.C., 2 N.C., Light Curtains (OSSD)
  • Safety Outputs: 3 N.O. safety contacts (relay-based)
  • Auxiliary Outputs: 1 N.C. auxiliary contact
  • Reset Modes: Automatic/Manual reset or Monitored Manual reset
  • Terminal Type: Fixed screw terminals

Mechanical and Installation Data

  • Housing Width: 22.5 mm
  • Mounting: 35 mm DIN-rail
  • Protection Rating: IP40 enclosure / IP20 terminals
  • Operating Temperature: -5 °C to +55 °C
Show more Show less

Average rating of 0 out of 5 stars

0 of 0 reviews


Recently viewed

is saved: