Qingdao Hengfengyou Electrical Engineering Co., Ltd.
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High quality safety vcb ZW32-12D/630-20 series pillar type outdoor high-voltage
12kv vacuum circuit breaker
ZW32-12 series outdoor pole-mounted vacuum circuit breaker is a kind of outdoor three-phase
AC power distribution equipment at 12kV and 50Hz, mainly used for closing the load current
and opening overcurrent and short circuit current in the power system. It can be used as a section
switch in the distribution line, branch line and ring main and as a incoming switch in rural grid,
industrial and mining enterprises, residential areas, construction sites, etc.
Service conditions:
Altitude: ≤1000m; if applied in special conditions, it is designed to 2000m to 4000m to meet
the requirements of different altitudes.
Ambient temperature: -40℃~+40℃;
Wind speed≤35m/s;
It is placed in the places without violent vibration
| No. | Description | Unit | Data | |
| 1 | Ratedvoltage | kV | 12 | |
| 2 | Ratedfrequency | Hz | 50 | |
| 3 | Ratedcurrent | 630 | 1250 | |
| 4 | Ratedshortcircuitbreakingcurrent | kA | 20 | 25 |
| 5 | Ratedpeakwithstandcurrent | kA | 50 | 63 |
| 6 | Ratedshorttimewithstandcurrent(4s) | kA | 20 | 25 |
| Ratedshortcircuitmakingcurrent(peak) | kA | 50 | 63 | |
| 8 | Mechanicalendurance | times | 10000 | |
| 9 | Ratedshortcircuitbreakingcurrentcapacity | times | 30 | |
| 10 | Powerfrequencywithstandvoltage(1min) Phasetophase/earth,betweenopencontacts | kV | 42 | |
| 11 | Lightningimpulsewithstandvoltage(peak) | kV | 75 | |
| 12 | Powerfrequencywithstandvoltageonsecondarycircuit(1 min) | V | 2000 | |
Product characteristics
1. The performance of the product is stable and reliable as the product adopts three-pillar type
structure, and the vacuum arc-extinguishing chamber connects with the operating mechanism
through insulation pulling rod;
2. Arc-extinguishing chamber, main conducting loop and insulation support are casted into an
organic whole by epoxy resin with APG technology, and encapsulated with silicon rubber, it is
provided with good anti-condensation performance and mechanical strength.
3. The switch adopts a high performance spring operating mechanism with the advantages of
simple structure and long mechanical life, and with the functions of manual/electric energy storage
and opening/closing operation.
4. An integrated isolating switch is optional for the product.
5. The product has the advantages of small size, novel appearance, light weight and easy installation.
6. The switch can be equipped with control terminal interface to apply to automation distributiong
networks and the unattended substations.
About us
Qingdao Hengfengyou Electrical Engineering Co. , Ltd. is one of the large-scale electric complete
sets of manufacturers in China, specializing in oil-immersed transformers, dry-type transformers,
high-voltage Cabinets, low-voltage cabinets and substation manufacturing specialized electrical
enterprises. The company is located in the beautiful coastal city of china-qingdao. The company
has a registered capital of 10 million yuan, 20 senior technical personnel, more than 500 employees,
and a sound sales and service system, annual output value of US $1 billion, the products sell well
at home and abroad.