22CB vacuum circuit breaker is a important part of locomotive, which is fitted on roof hood and it is also the main switch for electric connection and isolation of complete loco and contacting net. It is the most important protection device. When loco is in various default condition, it can cut off the main power supply of loco immediately, reliably and safely, and further to protect electric loco. This vacuum circuit breaker can be matched with the earthing switch of type 35KS and 36KS
| The main technical data: | |
| Name:22CBCK Vacuum Circuit Breaker | Model:22CBCK |
| Max. working voltage: | 27.5kV |
| Rated working voltage: | 25kV |
| Rated working current: | 1000A |
| close time: | ≤40 ms |
| Open time: | ≤115 ms |
| Rated control voltage: | DC110V |
| Mechanical endurance: | 250 000 cycles |
