VCB — vacuum circuit breakers 7.2–36 kV
VCB vacuum circuit breakers are made for medium voltage 7.2–36 kV. For the 7.2/12/17.5 kV classes this means up to 50 kA at a rated current of up to 4000 A, for 24 and 36 kV up to 40 kA and up to 3150 A.
- 7.2/12/17.5 kV
- up to 50 kA, up to 4000 A
- 24 kV
- up to 40 kA, up to 3150 A
- 36 kV
- up to 40 kA, up to 3150 A
- Standard
- IEC 62271-100
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
The design provides visual indication of interrupter wear, visible during a scheduled inspection. The duration of the short-time current is 4 s. The breakers are built to IEC 62271-100. They are installed in switchgear bays of medium voltage substations and industrial facilities.
Technical specifications
| 7.2/12/17.5 kV | up to 50 kA, up to 4000 A |
|---|---|
| 24 kV | up to 40 kA, up to 3150 A |
| 36 kV | up to 40 kA, up to 3150 A |
| Standard | IEC 62271-100 |
| Short-time current | 4 s |
Request a price and lead time
VCB — vacuum circuit breakers 7.2–36 kV. We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
Customs codes
| UKTZED (Ukraine) | 8535 21 00 00 |
|---|---|
| HS, 6 digits | 8535 21 |
| CN (EU) | 8535 21 00 |
| HTSUS (USA) | 8535 21 00 00 |
| China customs tariff | 8535 21 00 00 |
Codes are for reference: the final code is determined at declaration for the specific model.
Questions and answers
What currents do breakers of different voltage classes have?
For 7.2/12/17.5 kV up to 50 kA and up to 4000 A, for 24 and 36 kV up to 40 kA and up to 3150 A.
How is the wear of the vacuum interrupter monitored?
The breaker has a visual wear indicator for the interrupter, which is checked during inspection.
Which standard are the VCB breakers built to?
To IEC 62271-100, with a short-time current duration of 4 s.
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