Switchyard Supply
Class plate illustration: dead-tank HV circuit breaker silhouette with bushings and mechanism cabinet
Class plate illustration. No photography exists for this class; serial-unit records are captured on the order evidence pack.

HV breakers / GIS

550 kV dead-tank circuit breaker, 4000 A, 63 kA (reference class, quoted on request)

550 kV class · 4000 A / 63 kA · 60 Hz

About this listing

  • 550 kV class, 4000 A / 63 kA. Reference class, quoted on request; no OEM slot, approved-vendor, or inventory claim.
  • Ship-to US, Canada. Flatbed / crated. FAT and verified receive available on the quotation.
  • Working-capital interest can be flagged on the quotation. Partner-indicated, subject to underwriting. No live APR.
  • Compliance targets: IEEE C37, IEC 62271, Interconnect ready, ISO 9001.

Specifications

Catalog No.SY-HVBRK-550DT-63
TypeDead-tank breaker, SF6Verify at quotationInsulation medium and alternative gas confirm per OEM path.
kV class550 kV
Interrupting rating63 kAVerify at quotationDuty cycle confirm per RFQ.
Continuous current4000 A
Frequency60 Hz
StandardsIEEE C37.04 / C37.06; IEC 62271-100 as dual-path option
Lead time50-100 weeks AROVerify at quotationTarget, subject to confirmation.
Ship-toUS, Canada
HaulFlatbed / crated
Campus fit1 GW+ campus, 500 kV interconnect

Rows marked Verify at quotation are quoted from class data and locked on the formal quotation, never assumed from this page.

Delivery and compliance

  • IEEE C37
  • IEC 62271
  • Interconnect ready
  • ISO 9001

Compliance targets for the quotation. Exact standard parts are confirmed on the RFQ; badges are never presented as live factory certificates.

Order evidence spine

Every award closes these gates in sequence. The same spine appears on your quotation receipt and drives any financing review.

  1. Entity freezeBuyer-of-record / constructing taxpayer locked for any financing review.
  2. Slot confirmSupplier-stated production window, once evidence closes.
  3. FAT passedFactory acceptance test witnessed or document-reviewed.
  4. Serial recordedNameplate / serial captured against the PO line.
  5. ShippedUnit cleared the plant or port. Heavy-haul plan attached.
  6. Verified receiveSite receipt, condition, and serial check.
  7. Invoice approvedBuyer/EPC approved the OEM invoice (progress-pay path).

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