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Pole Mounted Circuit Breaker
ZW32-12G 12kV Outdoor Vacuum Circuit Breaker
Model ZW32-12G
CANGO is a 12kV outdoor vacuum circuit breaker supplier for substations, industrial distribution and rural grids. Send rated data for quotation.
Share your rated data, quantity and project requirements.
Project configuration reviewTechnical documentation support
Product Overview
ZW32-12G is a 12 kV, three-phase 50 Hz outdoor vacuum circuit breaker for opening and closing load, overload, and short-circuit currents in distribution systems. It is intended for substations, industrial and mining power networks, and rural grids where outdoor equipment may operate frequently.
The breaker uses a spring operating mechanism and can be supplied with a disconnector. When paired with a compatible controller, it can form an automatic reclosing solution with remote control, telemetry, and signalling functions for distribution automation.
EPC contractors, utilities, electrical distributors, and project buyers should confirm rated current, short-circuit breaking current, operating voltage, controller functions, installation arrangement, and local service conditions. CANGO reviews the project data and required accessories before quotation.
Model and Meaning
- ZW: outdoor vacuum circuit breaker
- 32: design sequence number
- 12: rated voltage, kV
- T: spring operating mechanism
- 630: rated current, A
- 20: rated short-circuit breaking current, kA
- G: with disconnector
- S / D: manual operation / motorized operation
Technical Specifications
ZW32-12G Technical Parameter Table
Review the ZW32-12G values, units, rated data, and project requirements before quotation.
| Item | Unit | Data | ||
|---|---|---|---|---|
| Rated voltage | kV | 12 | ||
| Rated insulation level | 1 min power-frequency withstand voltage | Dry: to earth / phase-to-phase / across open contacts | kV | 42 / 42 / 48 |
| Wet: to earth | kV | 34 | ||
| Lightning impulse withstand voltage (peak) | To earth / phase-to-phase / across open contacts | kV | 75 / 75 / 85 | |
| Rated frequency | Hz | 50 | ||
| Rated current | A | 630 | ||
| Rated short-circuit breaking current | kA | 12.5 / 16 / 20 | ||
| Rated short-circuit making current (peak) | kA | 50 | ||
| Rated peak withstand current | kA | 50 | ||
| 4 s rated short-time withstand current | kA | 20 | ||
| Rated operating sequence | O-0.3s-CO-180s-CO | |||
| Closing time / opening time | ms | 25-50 / 15-50 | ||
| Rated short-circuit breaking operations | operations | 30 | ||
| Mechanical endurance | operations | 10000 | ||
| 1 min power-frequency withstand voltage of control and auxiliary circuits | V | 2000 | ||
| Rated operating voltage and auxiliary-circuit rated voltage | V | DC 220 / AC 220 | ||
| Overcurrent release | Rated current | A | 5 | |
| Tripping-current accuracy | % | +/-10 | ||
Installation Dimensions / Drawing
Applications
ZW32-12G is mainly selected for substation feeder protection and control and industrial and mining power distribution systems. The final application should match the confirmed spring-operated outdoor breaker with optional disconnector and controller integration, rated data, and site installation conditions.
- Substation feeder protection and control
- Industrial and mining power distribution systems
- Rural distribution networks with frequent switching
- Pole-mounted outdoor distribution automation projects
Ordering Instructions / Information Required for Quotation
ForZW32-12G, send rated current, short-circuit breaking current, operating method, disconnector, controller functions, pole arrangement, and site conditions, quantity, destination, and the expected delivery schedule. The engineering review will be based on the selected spring-operated outdoor breaker with optional disconnector and controller integration and project drawing.
ORDERING INSTRUCTIONS
- Confirm rated current and the required rated short-circuit breaking current.
- State whether manual or motorized spring operation, a disconnector, and a distribution-automation controller are required.
- Provide the pole or support arrangement, installation altitude, ambient conditions, and pollution level.
- Provide quantity, destination country, applicable standard, documentation, and delivery requirements.
EXPLORE THE RANGE
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