Field checklist for ABB EF460-500
Start the ABB EF460-500 enquiry with a precise equipment identity and a defined plant function. The verified values below establish a technical baseline; they do not replace checking the delivered unit.
Verified parameters and fit limits
| Technical item | Verified value / selection note |
|---|---|
| Complete designation | EF460-500 |
| Product family | EF460 |
| Component role | 150–500 A electronic motor overload relay |
| Type | EF460-500 |
| ABB order code | 1SAX721001R1101 |
| Adjustment | 150–500 A |
| Trip class | 10E / 20E / 30E selectable |
| Contactor fit | Check AF400, AF460, AF580 or AF750 mounting |
| Final configuration | Confirm exact nameplate, hardware revision and order options before purchase |
Before signing off EF460-500, check the current ABB documentation and the actual nameplate. Family-level information must not be used as a guaranteed option for every configuration.
Which interfaces must match?
For EF460-500, confirm motor nameplate, contactor, trip class, reset and short-circuit coordination. Compare the original label, mounting, field terminals and power/control supplies with the ABB product reference.
Keep the EF460-500 electrical or network interface unchanged unless engineering has approved the revised drawing, settings and test scope.
What changes at installation?
Installing EF460-500 may affect adjacent wiring, panel access and auxiliary accessories. Check clearance and isolate the correct energy sources under the site's permit system.
Before disturbing EF460-500, save photos, configuration, parameter values and an alarm baseline. Keep removed parts identifiable until acceptance is signed.
What problem does it solve?
ABB EF460-500 is selected to protect an engineered large motor starter. State the actual circuit, loop or motor tag and the operating problem before deciding on a replacement.
A request for EF460-500 without site duty, installed revision or failure evidence can lead to a technically different part being offered.
How is performance proved?
After approved installation of EF460-500, exercise trip and reset under the approved test plan. Use only documented safe test methods and include connected equipment behavior.
Record the EF460-500 as-left results, asset tag, revision, date and witness. Restore alarms, interlocks and normal control before service handover.
What can cause a poor match?
A EF460-500 suffix or order-code difference may identify another coil, contact set, protocol, release, shaft or voltage. A matching appearance is not interchangeability evidence.
If the supplied EF460-500 differs from the approved item, quarantine it for review rather than changing field wiring to make it fit.
What should purchasing retain?
The ABB EF460-500 record should include the complete designation, required accessories, label evidence and the current installation manual revision.
For any proposed substitute to EF460-500, obtain written confirmation of every changed technical characteristic and the site's acceptance.
Other codes in this same series
The following EF460 references can accompany an ABB EF460-500 enquiry. Suffix changes can affect ratings, fit or approvals, so none is an automatic replacement.
No other unassigned EF460 reference is grouped with EF460-500 in this release.
Enquiry and acceptance handoff
Quote ABB EF460-500 exactly, include the asset tag and duty, and request confirmation of any missing accessories or alternative build.
Keep the approved EF460-500 comparison, installation checks and test results in the maintenance record.
