ZW8-12 outdoor vacuum circuit breaker
12kV 630A
Specifications
| Model | ZW8-12 |
|---|---|
| Standard | GB/T 1984 (HV AC circuit breakers), GB/T 11022and traction power equipment technical conditions |
| Rated Voltage | 12kV |
| Rated Current | 630A |
| Mechanical Life | 10000 operations |
| Operating Temperature | -40℃~+70℃ |
| Altitude | <4000m |
| Materials | vacuum interrupter, spring/permanent-magnet operating mechanism, hot-dip galvanized tank |
| Installation | pole-mounted outdoor/indoor switchgear/Traction substation:-mounted installation |
ZW8-12outdoor vacuum circuit breakercommonly used in12kVclass networks, for railways, urban networks, rural networks and other outdoor overhead line environments.
| Rated voltage | 12kV |
| Rated current | 630A |
| Short-circuit breaking current | 16kA, 20kA |
| Key features | outdoor vacuum circuit breaker, commonly used in12kVclass networks |

Product Overview
ZW8-12 The outdoor vacuum circuit breaker is one of the leading products in the Chuangwit circuit breaker and load switch range, ZW8-12outdoor vacuum circuit breaker, Rated voltage12kV, Rated current630A, Short-circuit breaking current16kA/20kA, commonly used in12kVclass networks.
Key Features
- load switch-fusecomposite apparatus optional
- proven reliable vacuum arc extinction technology
- indoor, outdoor and pole-mounted types available
- intelligent types support telecontrol and protection integration
Compliance & Quality Control
Complies with GB/T 1984 (HV AC circuit breakers), GB/T 11022 and traction power equipment technical conditions; vacuum arc extinction is maintenance-free with a mechanical life of 10000 operations; intelligent types with controllers support telecontrol and fault recording.Rated short-circuit breaking current and short-time withstand current satisfy system short-capacity verification; insulation level complies with GB/T 11022. The company holds CRCC railway product certification and ISO9001 quality management system certification; every piece (batch) is delivered only after passing factory inspection.
Operating Conditions & Typical Applications
For traction substations, switching stations and 10kV distribution systems under frequent operation and short-circuit breaking duty. Typical applications include traction substations, switching stations, 10kV distribution systems and industrial private lines.
Selection & Service
The company provides from selection calculations, drawing confirmation to volume supply, on-site technical guidance end-to-end service, Products are controlled under CRCC certification and the ISO9001 quality management system, standard items are stocked, volume orders are delivered on contractual schedules. For technical support and commercial inquiries, please call0375-6051688.
Performance
Operating Conditions
for traction substations, switching stations and 10kV distribution systems under frequent operation and short-circuit breaking duty.
Mechanical Performance
vacuum arc extinction is maintenance-free with a mechanical life of 10000 operations; intelligent types with controllers support telecontrol and fault recording.
Electrical Performance
Rated short-circuit breaking current and short-time withstand current satisfy system short-capacity verification; insulation level complies with GB/T 11022.
Applications
Traction substation:
ZW8-12 outdoor vacuum circuit breaker enable fast fault clearance on traction substation feeder lines.
Switching station:
ZW8-12 outdoor vacuum circuit breaker create flexible operating arrangements for switching-station lines.
10kV distribution system:
ZW8-12 outdoor vacuum circuit breaker are pole-mounted for 10kV line distribution; intelligent types support remote monitoring.
Industrial private lines:
ZW8-12 outdoor vacuum circuit breaker are supplied as matched sets for industrial private lines.


