Address
304 North Cardinal St.
Dorchester Center, MA 02124
Work Hours
Monday to Friday: 7AM - 7PM
Weekend: 10AM - 5PM
ZW32-12 Outdoor Vacuum Circuit Breaker 12kv Outdoor VCB Pole-Mounted for Distribution Networks
ZW32-12 series outdoor vacuum circuit breaker is designed for 12kV three-phase AC 50/60Hz power distribution systems. It is used to switch and break load current, overload current and short-circuit current in power networks.
It is widely applied in substations, rural power grids, and power distribution systems of industrial and mining enterprises as protection and control equipment. It is an ideal product for distribution line renovation and distribution automation construction.
Product Features
- Vacuum interrupter connects with operating mechanism via insulated pull rod, stable and reliable.
- APG epoxy resin integrated casting, excellent anti-condensation, UV resistance and aging resistance.
- Stainless steel enclosure, high strength, anti-corrosion for outdoor harsh environment.
- Optional spring mechanism, permanent magnetic mechanism or dual mechanism design.
- Can be equipped with FTU/RTU for distribution automation and unattended substations.
- Long mechanical life up to 30,000 operations, low maintenance.
Technical Parameters
| No. | Item | Unit | Value |
|---|---|---|---|
| 1 | Rated Voltage | kV | 12 |
| 2 | Rated Frequency | Hz | 50/60 |
| 3 | 1min Power Frequency Withstand Voltage | kV | 42 |
| 4 | Lightning Impulse Withstand Voltage | kV | 75 |
| 5 | Rated Current | A | 630 |
| 6 | Rated Short-circuit Breaking Current | kA | 20, 25 |
| 7 | Rated Short-time Withstand Current (4s) | kA | 20, 25 |
| 8 | Rated Peak Withstand Current | kA | 50, 63 |
| 9 | Rated Short-circuit Making Current | kA | 50, 63 |
| 10 | Opening Time | ms | 20–50 |
| 11 | Closing Time | ms | 35–70 |
| 12 | Mechanical Life | times | 30000 / 3000 (CB / Disconnector) |
| 13 | Operation Mode | — | Manual / Electric |
Normal Operating Conditions
- Ambient Temperature: -40℃ ~ +40℃, average ≤35℃ in 24h
- Altitude: ≤ 1000m
- Relative Humidity: daily average ≤95%, monthly average ≤90%
- Earthquake Intensity: ≤ 8 degrees
- Wind Pressure: ≤ 700Pa
- Installation site: no fire, explosion, corrosion, dust or vibration
Application
ZW32-12 is widely used in outdoor distribution lines, rural power grids, industrial and mining areas, substations, and distribution automation systems. It is suitable for pole-mounted installation and provides reliable protection and control for 12kV power networks.
We'd like to work with you！
Send us a message if you have any questions or request a quote.Our experts will give you a reply within 24 hours
and help youselect the right valve you want.