VD4/P 12.12.25 circuit breaker: switchgear interface and rating confirmation
The listed item is identified as an ABB VD4/P 12.12.25-NS medium-voltage vacuum breaker. ABB technical catalogues show the VD4/P 12.12.25 family configuration at 12 kV, 1250 A and 25 kA for the referenced withdrawable arrangement. The supplied 1VC1AM00014090 identifier should be checked against the actual nameplate because switchgear version, pole pitch, truck/cassette and accessories are essential fitment details.
Key technical data
| Technical item | Verified value / selection note |
|---|---|
| Listed designation | VD4/P 12.12.25-NS |
| Associated reference | 1VC1AM00014090; confirm the complete catalog number on the rating plate |
| Breaker family | ABB VD4 indoor vacuum circuit breaker |
| Voltage class | 12 kV configuration |
| Continuous current reference | 1250 A for the 12.12 model designation family |
| Short-circuit breaking reference | 25 kA family designation; confirm the exact tested rating/nameplate |
| Mounting/interface | P150 withdrawable configuration is a family reference; verify switchgear cassette and code |
| Operating mechanism/accessories | Check coil, auxiliary, interlock and truck options against the supplied unit |
The values above are intended to identify the listed version and support an initial technical review. Confirm applicable standards, rating conditions, installed accessories and the current ABB documentation for the serial number or revision before design approval, replacement or commissioning.
Application and engineering focus
Medium-voltage breaker selection is based on rated voltage, continuous current, short-circuit breaking current, operating sequence, insulation level and system grounding. Confirm the network fault study and switching duty rather than relying on the abbreviated type alone. Check whether this is a withdrawable or fixed version and how it interfaces with the installed panel. A family-level match does not prove mechanical intercompatibility with another cassette.
Configuration, compatibility and related references
Review spring-charging motor and closing/tripping coil voltages, auxiliary contact count, interlocks, shutters, earthing and racking arrangement. Compare pole spacing and contact geometry with the switchgear documentation. Verify accessory codes and any retrofit or supersession history. The breaker should be matched to the switchgear manufacturer’s approved configuration and site protection scheme by qualified medium-voltage personnel.
The related designations below are comparison references, not automatic substitutes. Confirm the complete type code, order number, interface, ratings and revision against the approved application before selecting an alternative.
- 1VC1AM00014161, VD4/P 12.16.25-NS
- 1VC1AM00014182, VD4/P 12.06.25-NS
- VD4/P 12.12.25, P: 150 WITH STANDARD ACCESSORIES
- VD4/P 12.16.32 ( 12KV-1600A)
- VD4/P 12.25.32
- VD4/P 12.25.32, P: 275 ACCESSORIES: MO, MC, MS, RL1, RL2, BGS2, AUXILIARY CONTACT (5+5)
- VD4/P 12.40.40, P: 275 WITH STANDARD ACCESSORIES
- VD4/P 17.06.25 P150
- VD4/P 17.06.25 P150,25 KA,Rating: 630A
- VD4/P 17.16.32 P210
- VD4/P 17.16.32 P210,31.5 KA,Rating: 1600A
- VD4/P12.12.40 1VCD400047(V3631)
- VD4/P12.12.50 P210
- VD4/P12.32.50
Installation and commissioning checks
Follow the applicable arc-flash, lockout and stored-energy controls. Inspect the vacuum interrupter, mechanism, insulation surfaces, operating counter and interlocks according to ABB maintenance guidance. Before energization, perform the prescribed mechanical, dielectric and primary/secondary protection tests. Record the serial number, nameplate ratings, timing results, protection relay settings and switchgear position checks in the commissioning file.
During commissioning, verify the nameplate, configuration, wiring and diagnostics before enabling normal operation. Test the relevant signal path or protection response end to end under controlled conditions. Record settings and as-left measurements, and investigate abnormal values at the sensor, load, wiring or system configuration before replacing components.
Ordering, replacement and application information
For a quotation or replacement review, provide the complete designation 1VC1AM00014090, VD4/P 12.12.25-NS, ABB order code where available, serial or hardware revision, quantity, installation environment, connected equipment, interface requirements and target delivery date. Include a clear rating-label photograph and relevant wiring, loop or panel drawing when possible.
Ask the supplier to confirm the exact configuration, accessories, revision and any approved successor in writing. Do not select solely from a family name or product photograph. For safety, grid-protection, medium-voltage or regulated applications, obtain review by the responsible qualified engineer and follow local codes and the manufacturer’s instructions.
