Zn28 Vs1 Vacuum Interrupter for Indoor Circuit Breaker (208C)

• Customization: Available
• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Energy-storage Type
• Model NO.: 208C
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed
• Structure: Vacuum
• Poles Number: 3
• Type: Vacuum
• Function: Vacuum
• Certification: ISO9001-2000, CQC
• Warranty: 12 Month
• Rated Voltage: 12kv
• Rated Current: 630A
• Rated Lighting Impulse Withstand Voltage: 75kv
• Rated Short-Circuit Braking Current: 20ka
• Transport Package: Standard Export Packing.
• Specification: Vacuum
• Trademark: ZGVE
• Origin: Wenzhou
• HS Code: 8538900000
• Production Capacity: 180000pieces/Year

Product Description

ZN28 VS1 Vacuum Interrupter For Indoor Circuit Breaker(208C)



Main Technical Data

Main Technical Data
Rated Voltage	12kV
Rated Current	630A/1250A
Rated Frequency	50Hz
Rated Short-time power frequency withstand voltage(1min)	42kV
Rated Lighting impulse withstand voltage	75kv
Rated short-circuit breaking current	20/25KA
Rated short-circuit making current(peak)	50/63kA
Breaking operations of rated short circuit breaking current	30 timies
Rated sigle capacitor bank breaking current	400A
Rated short-time withstand current	20/25kA
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