vacuum interrupter
Embedded poles
vacuum interrupter for outdoor circuit breaker
vacuum interrupter for indoor circuit breaker
vacuum interrupter for load break switch
vacuum interrupter for contactor
Products >> Embedded poles
ZKTD630/12-20 TD3141EB1

Main Technical Data
Rated voltage                                             kv 12
Rated current                                             A 630
Rated frequency                                          Hz 50
Rated short-time power frequency withstand voltage(1min)      kv 48
Rated lighting impulse withstand voltage                      kv 85
Rated short-circuit breaking current                          kA 12.5/16/20
Rated short-circuit making current(peak)                     kA 31.5/40/50
Rated operations of short-circuit breaking current interruption    times 30
Rated single capacitor bank breaking current                   A 400
Rated short-time withstand current                          kA 12.5/16/20
Rated peak withstand current                                kA 31.5/40/50
Rated duration of short-circuit                               s 4
Mechanical life                                            times 30000
Contact closing force due to bellows and atmosphere           N 70±40
Counterforce at rated contact stroke                           N 120±50
Three-pole simultaneity                                      μΩ 20
Shelf life                                                   years 20
Contact erosion limit                                        mm 3
Weight of moving parts                                                                              kg 0.7
Mechanical Data Required For Matched Vacuum Switchgear                                           
Rated contact stroke                                       mm 9±1
Average opening speed                                    m/s 1.0±0.25
Average closing speed                                     m/s 0.65±0.15
Added contact force                                        N 900/1300/1600±100
Contact bouncing duration at closing operation                 ms 2
Contact bouncing bank amplitude of opening operation          ms 2
Three-pole simultaneity                                      ms 1
Note:Rated characteristics can be given on requirment

 
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