Siemens Energy 3AP1 DT 72.5 kV SF6 Dead Tank Circuit Breakers — Unused Surplus (Qty 3)
CTG_62-2040_Siemens_72.5kV_SpecSheet.pdf
New 72.5 kV breakers carry long OEM lead times. These three are in stock and can ship without the wait.
The units are Siemens Energy 3AP1 DT 72.5 kV SF6 dead tank circuit breakers, built to IEC 62271-100 and IEEE C37.09. Each is an outdoor, SF6-insulated, three-pole gang-operated breaker rated 2000A continuous, 40kA short-circuit, with a 325 kV BIL and a spring operating mechanism. They have never been energized or placed in service.
CTG is the seller of record. The units are sold as unused surplus on an as-is, where-is, with-all-faults basis. They are not factory-new and are not sold direct from Siemens Energy. Specifications below were verified against the Siemens factory nameplates and the original Siemens engineering drawings supplied with the units.
Honesty is the point here. The full pre-sale disclosures are listed on this page and travel with every quote. We encourage a Siemens Energy Field Service Storage Health Inspection before purchase, and we can help arrange it.
Serious inquiries move fast. Tell us your application, timeline, and project, and we will get you the spec sheet, photos, and next steps.
Highlights
- Siemens Energy 3AP1 DT, 72.5 kV SF6 dead tank circuit breaker
- Rated 2000A continuous, 40kA short-circuit, 60Hz
- 325 kV BIL, 140 kV power-frequency withstand
- Outdoor, three-pole gang-operated, spring mechanism
- Built to IEC 62271-100 and IEEE C37.09
- Three units available, in stock in Des Moines, Iowa
- Unused surplus, never energized or placed in service
- Sold as-is, where-is, with all faults. Inspection on request
Specifications (per unit, verified)
Electrical
- Rated voltage (Ur): 72.5 kV
- Rated frequency (fr): 60 Hz
- Rated normal current (Ir): 2,000 A
- Max rated short-circuit breaking current (Isc): 40 kA symmetrical
- DC time constant: 45 ms
- DC component of rated short-circuit current: 45%
- First-pole-to-clear factor (kpp): 1.3
- Rated duration of short-circuit (tk): 1 s
- Rated lightning impulse withstand, BIL (Up): 325 kV peak
- Power-frequency withstand, 1 min (Ud): 140 kV (to ground and across open gap)
- Rated operating sequence: O-0.3s-CO-15s-CO
- Rated line-charging breaking current (Il): 10 A
- Rated cable-charging breaking current (Ic): 125 A
- Minimum specific creepage distance: 31 mm/kV (phase-to-phase)
- Prototype main-circuit resistance: 80 micro-ohm
Insulation and standards
- Product standards: IEC 62271-100 / IEEE C37.09
- Configuration: outdoor, SF6-insulated, dead tank, three-pole gang-operated
SF6 system
- Rated filling pressure at +20C: 0.60 MPa (6.0 bar / 87.5 psig)
- Alarm / signal-loss pressure at +20C: 0.52 MPa
- General lockout pressure at +20C: 0.50 MPa
- Total SF6 charge per unit: 13.7 kg
Mechanism and control
- Operating mechanism: spring charged (type FA-2), three-pole operation
- Control voltage: 125 VDC
- Motor voltage: 125 VDC
- Heater voltage: 120 VAC
- Seismic qualification: AF5 (0.5g)
Weight
- Total mass of circuit breaker: 1,670 kg per unit
Unit identification
| Unit | Serial number | Date of manufacture |
| 1 | 97230024 | April 2024 |
| 2 | 97230025 | April 2024 |
| 3 | 97240007 | October 2024 |
Included
- Three-pole dead tank breaker with integral SF6 system
- Integral low-voltage control cabinet
- Spring operating mechanism (type FA-2)
- Original Siemens engineering drawings supplied with the units
Required pre-sale disclosures
These five disclosures apply to every unit and travel with every quote. They are not optional.
- Acquired through an intermediary. The equipment was acquired in December 2024 from Bodec, a Utah-based EPC intermediary. It was not purchased directly from Siemens Energy.
- Original purchase contract not available. The original Siemens-to-Bodec purchase contract is not in the seller's possession. Warranty terms cannot be verified and should be assumed absent. No manufacturer warranty is represented or transferred.
- Storage history during intermediary custody is undocumented. Storage compliance during the Bodec custody period is not documented.
- Custody-compliance qualification. Earlier storage and custody conditions cannot be fully confirmed. The "unused surplus" classification reflects this gap, not a defect found on inspection.
- Recommended inspection. A Storage Health Inspection by Siemens Energy Field Service, or an equivalent qualified third party, is recommended prior to energization. If a clean inspection report is obtained before sale, it will be added to the buyer due diligence package.
Verbatim disclosure language is held in the buyer disclosure sheet (CTG File Ref 62-2040) and Schedule B of the sale agreement. Confirm against that copy before any send.
Terms and CTA
- Sold as-is, where-is, with all faults. No express or implied warranties.
- Buyer inspection period available before closing.
- Title and risk of loss pass at the warehouse loading dock against payment in full.
- Loading, rigging, and transport arranged by the buyer.
Ready to move on a project? Contact CTG Power Systems for the spec sheet, photos, and availability.
