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Type: Vacuum
Brand Name: SINOAMIGO JULI
Rated voltage: 12
Certificate: STL CCC
Model Number: VS1 (ZN63)
Place of Origin: China (Mainland)
Draw-able type: Fixed type
Phase distance: 210mm
Indoor type: Outdoor type

Specifications





Indoor Vacuum Circuit Breaker for switchgear mounting 12kVTechnical parameter
Item Unit Data
Rated voltage kV
3.3/6.6/10
Maximum working voltage kV 3.6/7.2/12
Rated current A 630 630 630,1250,1600
1250 1250 2000, 2500,3150
Rated short circuit breaking current kA 20 25 31. 5
Rated short circuit closing current (peak) kA 50 63 80
Rated withstand current (peak) kA 50 63 80
Rated short-time withstand current (4s)
kA 20 25 31. 5
Rated insulation level 1 min power frequency withstand voltage KV 42( fracture 48)
Rated lightning impulse withstand voltage 75( fracture 85)
Rated operation order O-0. 3s-CO-180s-CO
Mechanical life Times Spring Operation 10000 Permanent Magnetic 30000
Breaking times of rated short circuit breaking current
Times 50
Rated operating voltage of closing coils (DC/AC)
V 110,220
Rated operating voltage of opening coils (DC/AC)
V 110,220
Clearance between open contacts
mm 11±1
Ultra contact (contact spring compressed length)
mm 4±0.5
Three phase opening and closing bounce time
ms ≤2
Contact closing bounce time
ms ≤2
Average opening speed
m/s 0.9 ~1.2
Average closing speed
m/s 0.5 ~0.8
Opening time
under maximum operating voltage
s ≤ 0.05
under minimum operating voltage
≤ 0.08
Closing time
s ≤0.1
Main circuit resistance of each phase
μΩ 630≤60 1250≤40
Allowance abrasion cumulated thickness of the moving and fixed contact
mm 3