Safety Relays & Timers – Allen Bradley Guardmaster™
Safety Relays and Timers from the Rockwell Automation Allen Bradley Guardmaster™ range can be used in a variety of safety-related control applications to help protect personnel from unintended machine starts and loss of the safety function. Products include monitoring safety relays, timing control units, safety control relays, and single function and expansion relays. Specialty relays are also available for a wide-range of high-risk applications.
MSR100 Single Function Safety Relays
A simple and cost-effective solution for a wide variety of applications, MSR100…
MSR200 Modular Safety Relays
Using plug-and-play digital I/O expansion modules, the MSR200 expandable modular relay system…
MSR300 Safety Relays (Configurable)
The MSR300 family of expandable modular safety relays handles larger, more complicated…
440C-CR30 Software Configurable Safety Relay
The Guardmaster® 440C-CR30 Software Configurable Safety Relay is flexible, cost-effective, and easy…
Safety Relays — DI, DIS, SI, CI, GLP, EM, and EMD
Guardmaster® safety relays addresses the broad scope of applications in the intricate…




