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 TD3141EC

Main Technical Specification  Unit Specification
Rated voltage kV 12
Rated current A 630
Rated frenquency Hz 50
Rated short-time power frequency withstand voltage(1min)  kV 48
Rated lightning impulse withstand voltage  kV 85
Rated short-circuit breaking current  kA 16/20
Rated short-circuit making current(peak)   kA 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 16/20
Rated peak withstand current  kA 40/50
Rated duration of short-circuit  S 4
Mechanical life Times 30000
Contact closing force due to bellows and atmosphere   N 120±40
Counterforce at rated contact stroke    N 180±50
Circuit resistance at rated contact force 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    
Main Technical Specification  Unit Specification
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 1300/1600±100
Contact bouncing duration at closing operation ms 2
Contact bouncing bank amplitude of opening operation mm 2
Three-pole simultaneity ms 1


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