ZW32-12 Outdoor Vacuum Circuit Breaker
The ZW32-12 is a pole-mounted outdoor vacuum circuit breaker rated at 12kV, widely used in rural and urban power distribution networks. Features a compact spring-operated mechanism for reliable switching operations.
Key Features
- 12kV rated voltage, 630A rated current
- 20kA short-circuit breaking capacity
- Spring-operated mechanism — compact & lightweight
- Silicone rubber / epoxy resin insulation
- Mechanical life: 10,000 operations
- Suitable for frequent switching applications
- Manual and motorized operation available
Technical Specifications
| Rated Voltage | 12 kV |
| Rated Current | 630 A |
| Rated Frequency | 50 Hz |
| Rated Short-Circuit Breaking Current | 20 kA |
| Rated Peak Withstand Current | 50 kA |
| Rated Short-Time Withstand Current | 20 kA / 4s |
| Mechanical Life | 10,000 operations |
| Lightning Impulse Withstand Voltage | 75 kV (peak) |
| Power Frequency Withstand Voltage (Wet) | 34 kV |
| Power Frequency Withstand Voltage (Dry) | 42 kV |
| Closing Time | <300 ms |
| Opening Time | 18-45 ms |
Applications
Standards Compliance
Related Products
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The ZW32-24 is a 24kV outdoor vacuum circuit breaker with spring operating mechanism, rated at 630A with short-circuit breaking capacity up to 25kA. Widely used in hydropower stations, industrial substations, renewable energy grid connections, and rural/urban distribution networks. Control voltage options include 110VDC, 220VDC, and 220VAC. Fully compliant with IEC 62271-100.
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SPV-24 Outdoor Vacuum Circuit Breaker (24kV)
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Frequently Asked Questions
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