Allen-Bradley – 440R-P226AGS-NNR (MSR42) – GuardMaster Multi-Function

Main Features

• Manufacturer: Allen‑Bradley / Rockwell Automation GuardMaster MSR series  

• MPN: R‑PAGS‑NNR; commonly referred to as MSR Start or GuardShield safety relay  

• Inputs: Up to safety inputs (suitable for safety light curtains, E-stops, safety doors); supports manual or automatic/manual monitored reset modes  

• Outputs:

  • PNP safety outputs (OSSD) rated at  mA each for direct connection to safety contactors  

  • auxiliary configurable outputs for diagnostics or signaling

• Voltage & Power Specs:  V DC power supply; module draws approx. . W  

• Safety Ratings:

  • EN ISO ‑ Category 

  • SIL (IEC )

  • IEC ‑ light curtain compatible  

• Diagnostics & Indicators: Features front-panel LEDs; ribbon interface enables automatic muting, blanking, and external device monitoring (EDM/start-release functionality)  

• Form Factor: DIN‑rail mountable, . mm width, approx.  × . ×  mm, weighing around . kg  

• Connection Details: Removable terminal blocks; built-in RJ port for interfacing with GuardShield Micro‑ safety light curtains