ZW32-24 Outdoor Vacuum Circuit Breaker
Rated Voltage: 24kV | Rated Current: 630A | Rated Short-Circuit Breaking Current: 20kA
The ZW32-24 Outdoor High Voltage Vacuum Circuit Breaker (VCB) is a three-phase AC outdoor switching device designed for 24kV power distribution systems with a frequency of 50Hz.
It is mainly used for load current switching, overload protection, and short-circuit current interruption in power systems. The circuit breaker is widely applied in substations, industrial and mining enterprises, rural power grids, and outdoor distribution networks where reliable switching and protection are required.
With a compact structure, lightweight design, maintenance-free operation, and excellent environmental adaptability, the ZW32-24 vacuum circuit breaker can operate reliably under harsh climate conditions and polluted outdoor environments.
The ZW32-24 adopts a compact integrated structure with reduced size and weight, making it easy to install on outdoor distribution poles and substations.
The vacuum interrupter provides excellent arc extinguishing performance, ensuring safe interruption of:
- Load currents
- Overload currents
- Short-circuit currents
It offers stable electrical performance and long service life.
The sealed structure reduces maintenance requirements and improves operational reliability, helping minimize downtime and maintenance costs.
Designed for outdoor applications, the breaker features:
- Anti-condensation capability
- Resistance to dust and pollution
- Stable operation under extreme weather conditions
Suitable for complex outdoor power distribution environments.
The circuit breaker supports:
- Manual operation
- Electric operation
It can also be equipped with isolation switches and current transformers according to project requirements.
| Symbol | Description |
|---|---|
| ZW | Outdoor vacuum circuit breaker |
| 32 | Design series |
| 24 | Rated voltage (kV) |
| T | Spring operating mechanism |
| 630 | Rated current (A) |
| 20 | Rated short-circuit breaking current (kA) |
| G | With isolation switch |
| S / D | Manual operation / Electric operation |
| Parameter | Unit | Value |
|---|---|---|
| Rated Voltage | kV | 24 |
| Rated Frequency | Hz | 50 |
| Rated Current | A | 630 |
| Rated Short-Circuit Breaking Current | kA | 20 |
| Rated Peak Withstand Current | kA | 50 |
| Rated Short-Time Withstand Current | kA | 20 |
| Rated Short-Circuit Making Current (Peak) | kA | 50 |
| Mechanical Endurance | Operations | 10,000 |
| Short-Circuit Breaking Operations | Operations | ≥30 |
| Power Frequency Withstand Voltage (1 min) | kV | 65/79 |
| Lightning Impulse Withstand Voltage | kV | 125/145 |
| Secondary Circuit Withstand Voltage (1 min) | kV | 2 |
The ZW32-24 outdoor vacuum circuit breaker consists of:
- Vacuum interrupter
- Insulating cylinder
- Conductive terminals
- Flexible connectors
- Insulating pull rod
- Contact pressure spring
- Opening spring
- Drive linkage mechanism
- Operating mechanism
- Current transformer
- Isolation switch (optional)
The ZW32-24 outdoor vacuum circuit breaker is widely used in:
- Outdoor medium-voltage distribution networks
- Substations
- Industrial and mining power systems
- Rural power grid upgrades
- Utility distribution automation systems
- Pole-mounted switching stations
24kV outdoor medium-voltage switching solution
Reliable vacuum arc extinguishing technology
Compact and lightweight structure
Long mechanical service life up to 10,000 operations
Suitable for harsh outdoor environments
Manual and electric operation available
Compatible with distribution automation systems
We provide customized solutions according to project requirements, including:
- Electric operating mechanism
- Manual operating mechanism
- Isolation switch configuration
- Current transformer integration
- Mounting structure customization
- OEM manufacturing support
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