MV Components
Front-Operated Vacuum Circuit Breaker
Maintenance-free vacuum circuit breaker with front-operated mechanism for switchgear assemblies. M2/E2/C2 classes.
12–36 kV630–4000 A31.5 kA
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Front-operated vacuum circuit breakers are designed for switchgear cells with front access to the operating mechanism. Vacuum interrupters are maintenance-free for the entire service life; mechanical endurance class M2 corresponds to 10,000 switching cycles.
Technical Specifications
| Parameter | 12 kV | 24 kV | 36 kV |
|---|---|---|---|
| Rated current | 630–4000 A | 630–4000 A | 630–4000 A |
| Power frequency withstand voltage | 28 kV | 50 kV | 70 kV |
| Lightning impulse withstand voltage | 75 kV | 125 kV | 170 kV |
| Short-circuit withstand current (3 s) | 31.5 kA | 31.5 kA | 25 kA |
| Rated peak short-circuit withstand | 78.8 kA | 78.8 kA | 62.5 kA |
| Endurance classes | M2 / E2 / C2 | M2 / E2 / C2 | M2 / E2 / C2 |
| Interrupting medium | Vacuum | ||
