CR-M024AC4: CR-M pluggable interface relay application and replacement review
CR-M024AC4 is a CR-M pluggable interface relay. The technical data below separates documented family characteristics from ordering-code options that need verification on the actual unit.
Technical facts to verify
| Technical item | Verified value / selection note |
|---|---|
| Complete designation | CR-M024AC4 |
| ABB order code | 1SVR405613R0000 |
| Coil | 24 V AC |
| Contacts | 4 changeover |
| Contact rating | 250 V / 6 A |
| Contact material | Silver-nickel alloy |
The data for CR-M024AC4 supports initial identification. For a purchase decision, use the actual nameplate and the manufacturer's documentation for the complete installed configuration.
Where this designation fits
For CR-M024AC4, A four-pole relay can isolate multiple control signals, but each contact's load category and life must suit the connected circuit. Account for loss of coil supply.
Record the operating duty, supply and field interfaces of CR-M024AC4. A same-family designation may still have a different electrical rating, connection, firmware or approval.
Configuration gate before ordering
For CR-M024AC4, Verify socket pinout, 24 V AC coil supply, contact burden and whether the circuit needs an LED indicator. A 24 V DC coil is not interchangeable.
The RFQ for CR-M024AC4 should include the full designation, quantity, clear nameplate photo, revision, drawings and required delivery date. Request explicit confirmation of every proposed alternative.
Site acceptance and maintenance
For CR-M024AC4, Test coil energization and all four contact transitions under safe circuit conditions, then restore wiring labels and the correct socket retaining clip.
File the test record under CR-M024AC4 and keep the as-left wiring, settings and firmware with the asset history. Site safety procedures and the exact manufacturer's instructions govern the work.
Related designations in the same product line
The following codes have a same-line relationship to CR-M024AC4. Their ratings and options can differ; they are references for an enquiry, not approved substitutes.
- CR-M024AC4L
Procurement handover
Use CR-M024AC4 consistently in the quotation, purchase order and maintenance record. Ask the supplier to state whether the offered item is the exact designation or a documented successor.
Before energizing CR-M024AC4, compare the supplied labels, accessories and approvals with the approved engineering documents. Retain the inspection and acceptance results for future service.
