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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
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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