Model NO.: 208D
Poles Number: 3
Type: Vacuum
Function: Vacuum
Certification: ISO9001-2000, CQC
Warranty: 12 Month
Rated Voltatge: 12kv
Rated Current: 630
Rated Short-Circuit Breaking Current: 20ka
Mechanical Life: 20000 Times
Shelf Life: 20 Years
Trademark: ZGVE
Transport Package: Standard Export Packing.
Specification: Vacuum
Origin: Wenzhou
HS Code: 8538900000
ZN28 VS1 Vauum Interrupter For TD630/12-20
Zn28 Vs1 Vacuum Interrupter for Td 1250/12-20




Main Technical Data
Main Technical Data
Rated Voltage  12kV
Rated Current  1250A
Rated Frequency 50Hz
Rated Short-time power frequency withstand voltage(1min) 42kV
Rated Lighting impulse withstand voltage 75kv
Rated short-circuit breaking current  25kA
Rated short-circuit making current(peak) 63kA
Breaking operations of rated short circuit breaking current 30 timies
Rated sigle capacitor bank breaking current  400A
Rated short-time withstand current 25kA
Rated peak withstand current 50/63kA
Rated duration of short-circuit 4s
Mechanica life 20000times
Contact closing force due to bellows and atmosphere 80±40N
Counterforce at rated contact stroke 120±50N
Circuit resistance at rated contact force  ≤25μΩ
Shelf life  20 years
Contact erosion limit 3mm
Weight of moving parts ≤1.3kg
Mechanical Data Required for matched vacuum switchgear
Rated contact stroke 10±1mm
Average opening speed  1.0±0.25m/s
Average closing speed  0.65±0.15m/s
Added contact force  2000±100N
Contact bouncing duration at closing operation ≤2ms
Contact bouncing bank amplitude of opening operation ≤2mm
Three-pole simultaneity ≤1ms

Dimensional Drawing

Zn28 Vs1 Vacuum Interrupter for Td 1250/12-20


Zn28 Vs1 Vacuum Interrupter for Td 1250/12-20
Zn28 Vs1 Vacuum Interrupter for Td 1250/12-20


Zn28 Vs1 Vacuum Interrupter for Td 1250/12-20
Zn28 Vs1 Vacuum Interrupter for Td 1250/12-20