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This discontinued MSR238P safety relay is a service and maintenance reference for legacy Guardmaster-equipped machines. Its primary role is in a safety-related control circuit, where safe machine behavior depends on correct relay selection, wiring and system-level validation.
Maintenance teams often search this catalog number while repairing an installed safety panel, documenting the existing architecture or planning a controlled retrofit. Unlike general-purpose relays, a safety component must be assessed against the complete machine safety design, including monitoring and reset behavior.
Technical Details and Product Specifications
Typical Industrial Applications
Machine safety repair, retrofit planning and replacement sourcing. Production and maintenance teams should identify the installed machine model and operating conditions before specifying a replacement.
Replacement and Compatibility Notes
Rockwell lists 440R-EM4R2D as an engineering replacement, not a guaranteed direct substitute. Verify the full circuit, terminal assignment, safety performance, approvals and any revalidation requirements before ordering.
Request a Quote
Contact Corwin Solutions with the exact manufacturer part number 440R-H23196, requested quantity, delivery location, equipment application, condition requirements and any revision or nameplate information. Availability, condition, lead time and pricing are confirmed upon quotation; no stock is represented by this listing.
This discontinued MSR238P safety relay is a service and maintenance reference for legacy Guardmaster-equipped machines. Its primary role is in a safety-related control circuit, where safe machine behavior depends on correct relay selection, wiring and system-level validation.
Maintenance teams often search this catalog number while repairing an installed safety panel, documenting the existing architecture or planning a controlled retrofit. Unlike general-purpose relays, a safety component must be assessed against the complete machine safety design, including monitoring and reset behavior.
Technical Details and Product Specifications
Typical Industrial Applications
Machine safety repair, retrofit planning and replacement sourcing. Production and maintenance teams should identify the installed machine model and operating conditions before specifying a replacement.
Replacement and Compatibility Notes
Rockwell lists 440R-EM4R2D as an engineering replacement, not a guaranteed direct substitute. Verify the full circuit, terminal assignment, safety performance, approvals and any revalidation requirements before ordering.
Request a Quote
Contact Corwin Solutions with the exact manufacturer part number 440R-H23196, requested quantity, delivery location, equipment application, condition requirements and any revision or nameplate information. Availability, condition, lead time and pricing are confirmed upon quotation; no stock is represented by this listing.