Schneider P143 31QA7M5B68L MiCOM P143 feeder-protection relay configuration: field comparison and technical notes
P143 31QA7M5B68L is the exact enquiry designation for this MiCOM P143 feeder-protection relay configuration. The shared category collage is a reference image and does not depict the exact P143 31QA7M5B68L build. The aim is to preserve the identity and make a safe comparison with the installed equipment, especially when a legacy number or long option string is involved.
Technical facts to start the review
| Technical item | Verified value / selection note |
|---|---|
| Complete enquiry code | P143 31QA7M5B68L |
| Documented family or role | MiCOM P143 feeder-protection relay configuration |
| Relay series | MiCOM P14x |
| Application | Feeder overcurrent and earth-fault protection |
| Exact option code | Verify from manufacturer order form and installed label |
Interface map
| Check point | Evidence to obtain |
|---|---|
| Electrical or process duty | Installed rating, supply, sensor or protection settings |
| Mechanical fit | Mounting, connector, cable, terminals and clearances |
| Configuration | Full label, revision, firmware and ordered options |
For P143 31QA7M5B68L, obtain a legible photograph of the complete label and a copy of the relevant drawing. A visible family name confirms only the product role, not the exact configured current, protocol, sensor range, communication port or safety approval. If the table does not state a value for P143 31QA7M5B68L, leave that value open until the manufacturer record confirms it.
Quotation questions
- Is the exact item offered?
- Ask for a photograph and complete designation.
- What is included?
- List connectors, terminal blocks, keys, sensor parts and software separately.
- Is a replacement proposed?
- Request a written functional and interface comparison before approval.
Quote P143 31QA7M5B68L as a distinct line item. The supplier should state stock condition, delivery region and lifecycle status. For an obsolete P143 31QA7M5B68L, ask whether repair, tested surplus or an engineered migration is being offered. These paths have different acceptance requirements and should not be blended into a single 'compatible' claim.
Installation and acceptance route
Before removing the installed P143 31QA7M5B68L, record wiring, settings and process condition as appropriate. Use the site's isolation procedure and the manufacturer's installation instructions. Match the received P143 31QA7M5B68L markings to the approved order before fitting it; examine damage, missing accessories and any difference in revision.
Commissioning for P143 31QA7M5B68L should demonstrate its actual function in the system: relay pickup and trip logic, sensor measurement, network communication, cable continuity, actuator travel or circuit switching as relevant. Document the outcome and the complete P143 31QA7M5B68L reference. A similar shape or part-number prefix alone is not an acceptance test.
Other similar-looking codes
The following 1 codes share the visible P143 pattern with P143 31QA7M5B68L. They are indexed for search and enquiry only; the list does not establish the same function, rating, supplier or interchangeability. Verify every full designation separately.
Final selection rule
Release P143 31QA7M5B68L only after the full code, documented product role, actual installation interfaces and supplier offer agree. Keep P143 31QA7M5B68L visible in the procurement and receiving record, and identify any substitute as a separate engineering decision.
