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About the Allen-Bradley MSR
The Allen-Bradley MSR is a compact industrial safety relay designed to protect personnel and machinery by monitoring emergency stops, safety gates and two-hand controls. Built for easy integration into control panels, the MSR family delivers reliable safe switching, clear diagnostics and flexible reset options to help meet machine-safety standards while minimising downtime.

Allen-Bradley MSR42 Base Module 445L-104794-B040
- Manufacturer: Allen-Bradley
- Model: MSR
Used Allen-Bradley MSR42 Base Module 445L-104794-B040 “with scratches on the unit as shown in the photos.please check all photos for your reference and before making any purchase.”
Ajman, United Arab Emirates

