FGRMS51-24 Equivalent & Substitute Parts

Part Overview

The FGRMS51-24 is an Omron Automation and Safety relay module configured for 24VDC operation with 6PST contact form (5 Form A, 1 Form B). This component is classified as obsolete and is no longer in active production. Due to its obsolete status, identifying compatible substitute components is essential for system maintenance, repair, and continued operational support where original inventory is depleted.

Substiute Parts

FGRMS51-24
Omron Automation and SafetyIn Stock: 1210FGRMS51-24 Datasheet
FGRMS51-24
Current Part
P7SA-14F
Omron Automation and SafetyIn Stock: 4637P7SA-14F Datasheet
P7SA-14F
Direct

Key Parameters

Parameter Value
Manufacturer Part Number FGRMS51-24
Manufacturer Omron Automation and Safety
Series FGR-M1
Product Status Obsolete
Coil Voltage 24VDC
Contact Form 6PST-5NO/1NC (5 Form A, 1 Form B)
Contact Rating (Current) 6 A
Switching Voltage 250VAC, 125VDC - Max
Mounting Type DIN Rail
Termination Style Screw Terminal
Coil Current 20.8 mA
Coil Power 500 mW
Coil Resistance 1.15 kOhms
Release Time 10 ms
Operating Temperature -40°C ~ 85°C
Moisture Sensitivity Level (MSL) 1 (Unlimited)

Substitute Part Grouping Explanation

The substitute component identified for the FGRMS51-24 is the P7SA-14F, manufactured by Omron Automation and Safety. However, this substitute represents a functional category shift rather than a direct electrical equivalent.

The P7SA-14F is a relay socket designed for DIN Rail mounting with 14-position capacity, intended for use with the G7SA Series relay modules. This component serves as a mounting and connection interface rather than a direct relay replacement.

Substitution logic is based on the following shared parameters:

  • Mounting Type: DIN Rail
  • Termination Style: Screw Terminal
  • Manufacturer: Omron Automation and Safety
  • Product Category: DIN Rail-mounted automation components

The P7SA-14F does not provide equivalent electrical switching characteristics (contact form, coil voltage, contact rating, or switching voltage) to the FGRMS51-24. Selection of this component requires verification that the application architecture supports socket-based relay configuration rather than direct module installation.

Parameter Comparison

Parameter FGRMS51-24 P7SA-14F
Manufacturer Omron Automation and Safety Omron Automation and Safety
Product Status Obsolete Active
Mounting Type DIN Rail DIN Rail
Termination Style Screw Terminal Screw Terminal
Moisture Sensitivity Level (MSL) 1 (Unlimited) 1 (Unlimited)
RoHS Status Not specified ROHS3 Compliant
REACH Status Vendor Undefined REACH Unaffected

Engineering Selection Recommendations

The FGRMS51-24 is an obsolete product with vendor-undefined REACH status. The P7SA-14F is an active product with ROHS3 compliance and REACH Unaffected designation, providing improved regulatory standing for new system designs and long-term availability.

Direct electrical substitution of the FGRMS51-24 with the P7SA-14F is not applicable due to fundamental functional differences. The P7SA-14F is a socket interface component, not a relay module. For applications requiring direct relay replacement with equivalent electrical performance (24VDC coil, 6PST contact configuration, 6 A contact rating), alternative Omron relay modules from active product lines must be evaluated based on matching electrical specifications.

For applications where the FGRMS51-24 is used in conjunction with compatible relay modules, the P7SA-14F may serve as a mounting and termination interface if the system architecture supports socket-based configuration.

Frequently Asked Questions (FAQ)

Q: Can the P7SA-14F directly replace the FGRMS51-24 in existing installations?

A: No. The P7SA-14F is a relay socket interface, not a relay module. It does not provide the electrical switching functionality of the FGRMS51-24. Direct replacement requires a relay module with matching electrical specifications (24VDC coil, 6PST contact form, 6 A contact rating).

Q: What are the key parameters that determine substitution compatibility for the FGRMS51-24?

A: Electrical compatibility is determined by coil voltage (24VDC), contact form (6PST-5NO/1NC), contact rating (6 A), and switching voltage (250VAC, 125VDC maximum). Mechanical compatibility requires DIN Rail mounting and screw terminal termination.

Q: Why is the FGRMS51-24 listed as obsolete?

A: The FGRMS51-24 is no longer manufactured by Omron Automation and Safety. Obsolete status indicates end-of-life status and unavailability of new production inventory beyond existing stock.

Q: What compliance advantages does the P7SA-14F offer over the FGRMS51-24?

A: The P7SA-14F is ROHS3 compliant and REACH Unaffected, providing regulatory compliance for European and international markets. The FGRMS51-24 has vendor-undefined REACH status, limiting its use in regulated applications.

Q: Are there active Omron relay modules that match the FGRMS51-24 electrical specifications?

A: Omron manufactures active relay product lines with DIN Rail mounting. Specific model identification requires matching coil voltage (24VDC), contact configuration (6PST), contact rating (6 A), and switching voltage specifications against current product catalogs.

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