VD□-12/24 GIS Vacuum Circuit Breaker
Breaker + disconnector module for gas-insulated cabinets: 20 kA/4 s · 25 kA/3 s withstand, 10,000-operation breaker life, ≤ 60 μΩ loop resistance and ≤ 2 ms phase asynchronism.
- Enterprise code · vacuum breaker with disconnector · rated voltage · earthing type · rated current · short-tim
A cleaner, more reliable approach to MV switching
The HP-ELS series replaces SF₆ with environmentally friendly insulating media while keeping the proven safety and performance utilities expect from gas-insulated switchgear.
Product Overview
The VD□-12/24 vacuum circuit breaker with disconnector offers easy installation, low maintenance, long life, compact size, low cost, safety and reliability. It complies with GB 1984-2014 (HV AC circuit breakers) and GB/T 1985-2023 (HV AC disconnectors and earthing switches). Main-circuit short-time withstand current is 20 kA (4 s) and 25 kA (3 s); breaker mechanical life is 10 000 operations and the disconnector 3 000; the earthing switch withstands 20 kA (4 s) with 3 000 operations.
Technical specifications
Headline ratings at a glance, followed by the full technical data sheet. Exact values are confirmed per project configuration.
| Parameter | Value |
|---|---|
| Main-circuit resistance | ≤ 60 μΩ |
| Over-travel / contact gap | 2–3 mm / 8–10 mm |
| Contact bounce | ≤ 2 ms |
| Average opening / closing speed | 1–1.6 / 0.6–1.2 m/s |
| 3-phase asynchronism (open / close) | ≤ 2 ms |
| Withstand (main circuit) | 20 kA·4s / 25 kA·3s |
| Mechanical life (breaker / disconnector) | 10,000 / 3,000 ops |
Reading the model designation
Generated automatically from each product's model code.
Overall dimensions
Cabinet height, width and depth options. Selection depends on cable type and incoming / outgoing configuration.
| Item | Dimensions (mm) | Scope of application |
|---|---|---|
| Overall width W | 508 | mm |
| Phase spacing | 150 | mm |
| Height H | 411 | Body (mm) |
| Depth D | 192 | mm |
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