Circuit Breaker Reference

Data record tests.contact-resistance.equipment.breaker-sf6.acceptance

Verified 2026-10-29 Confidence: High

Contact Resistance is specified for sulfur hexafluoride circuit breakers in acceptance testing at clause 7.6.4.B.3 of ANSI/NETA ATS-2025. The clause calls for a static contact or pole resistance test on the breaker.

Value: sulfur hexafluoride circuit breakers

ProvenanceANSI/NETA ATS-2025 supports data record tests.contact-resistance.equipment.breaker-sf6.acceptance, which is cited on the entry Contact Resistance.SOURCEANSI/NETA ATS-2025ANSI/NETA ATS-2025Licensed standard, clause 7.6.4.B.3DATA RECORDtests.contact-resistance.equipment.breaker-sf6.acceptancetests.contact-resistance..Verified 2026-10-29ENTRYContact ResistanceContact ResistanceNo revisions
Provenance. Where this record comes from and where it is used: the cited source, the record itself and the entry that cites it.
Provenance: the chain from source to entry.
StepItemDetail
SourceANSI/NETA ATS-2025Licensed standard, clause 7.6.4.B.3
Data recordtests.contact-resistance.equipment.breaker-sf6.acceptanceVerified 2026-10-29
EntryContact ResistanceNo revisions
Subject
Contact Resistance (Test methods)
Kind
Equipment fact
Source
ANSI/NETA ATS-2025, clause 7.6.4.B.3, Acceptance Testing Specifications for Electrical Power Equipment and Systems, NETA. Publisher page for ANSI/NETA ATS-2025Publisher information page
Also stated in
  • FIST 4-7, section 6.1.10.1, page 43 (August 2023).
    Read the reference passage

    6.1.10.1 Contact Resistance Test

    "Contact resistance tests for circuit breakers of all voltage classes and current ratings will verify that contacts are firmly seated and that the breaker has not been damaged in shipping or handling. Contact resistance tests should be conducted prior to energizing and placing breakers in service."

    FIST 4-7, section 6.1.10.1, page 43, August 2023. Agency copy of FIST 4-7

    The current standard governs; this passage is a public-domain description of the practice dated August 2023.

  • FIST 4-7, section 6.1.10.1, page 44 (August 2023).
    Read the reference passage

    6.1.10.1 Contact Resistance Test

    "Instrumentation should be suitable for the level of precision required. A high-current breaker should have contact resistance in the order of micro-ohms or less. Check breaker manual for nominal contact resistance values for the specific model of circuit breaker."

    FIST 4-7, section 6.1.10.1, page 44, August 2023. Agency copy of FIST 4-7

    The current standard governs; this passage is a public-domain description of the practice dated August 2023.

History

Every recorded change to this data record, oldest first.
DateChange
2026-10-29created

Cite this page

Cite the governing standard for the fact itself; cite this page as the finding aid.

"Data record tests.contact-resistance.equipment.breaker-sf6.acceptance." Circuit Breaker Reference. 2026-10-29. https://www.circuitbreakerreference.com/data/tests.contact-resistance.equipment.breaker-sf6.acceptance/.