MV vacuum circuit breakers
Nowadays Electroshield Samara manufactures more than 100 types of vacuum circuit breakers which meet virually any requirements of the switchgear designers.
No series:
Scope of Application
Electroshield Samara vacuum circuit-breakers are used in switchgear of marine type and mining type. For outdated and alarm-state objects, modern designs have been developed.Technical information
| Product type | VVU-SESH-10;VVM-SESH-10 | VVU-SESH-35; VVU-SESH-27,5 | VVN-SESH-35; VVN-SESH-27,5 |
| Drive | Spring motor, Electromagnetic, Magnet latch | Spring motor, Electromagnetic | Spring motor, Electromagnetic |
| Climatic category | U2, T3, OM3 | U2, T3 | UHL1 |
| Rated voitage, kV | 10 | 35 | 35 |
| Rated current, A | 1000; 1600; 2000; 2500; 3150; 4000 | 1000; 1600 | 1000; 1600; 2000 |
| Short-time withstand current, kA | 20; 31,5; 40; 50 | 20; 25 | 25; 31,5 |
| Peak with stand current, kA | 50; 80; 100; 125 | 50; 63 | 63; 80 |
| Mechanical durability, CO cycles qty. | 50000 | 25000 | 25000 |
| Life cycle | 30 | 25 | 25 |
| Applied for | Retrofit; Switchgear; Stationary equipment; Partitioning units | Switchgear; retrofit | Networks; MCTS |
| Insulation type | Glass-filled polycarbonate; Silicon; Epoxy resin | Epoxy resin | Epoxy resin; organosilicon insulation |
