Audited Supplier
VTJ4340A
ZKTJ 400/12-6.3
ZKTJ 630/12-6.3
Vacuum Interrupter for Contactor
Vacuum arc extinguishing chamber, also known as vacuum switch tube, is the core component of the high voltage power switch, its main role is to cut off the arc and inhibit the electric current by its high inside insulation performance to avoid accidents.
Wuhan Feite Electric brand vacuum arc extinguishing chamber adopts a corrugated ceramic insulation shell, copper tungsten tungsten carbide alloy materials contact, using advanced one exhuast technology process makes the vacuum interrupter has the advantages of small volume, high insulating level, low closure value, long service lifetime, easy-maintenance, explosion-free, low noise, low maintenance costs, reliable operation and non-pollution etc.. The vacuum arc extinguishing chamber mainly been used in power transmission and distribution control system. It is also can be used in metallurgy, mine, petroleum, chemical industry, railway, broadcasting, communications, industrial high frequency heating power distribution system.
Wuhan Feite Electric vacuum arc extinguishing chamber for vacuum contactor rated voltage is 1.14~40.5kV, rated current is 630A~1250A
Main Technical Data
| ELECTRICAL RATINGS(3PHASE) SYMMETRICAL BASIS | |
| 1.Rated Voltage | 12KV |
| 2.Rated Current | 400/630A |
| 3.Rated Frequency | 50Hz |
| 4.Rated Short-time Power Frequency Withstand Voltage(1min) | 70KV |
| 5.Rated Lighting Impulse Withstand Voltage | 107KV |
| 6.Rated Making Current | 6.3KA |
| 7.Rated Breaking Current,Max | 5.0KA |
| 8.Rated Breaking Current,Min | 125A |
| 9.Rated Making Current,Limit | 6.3KA |
| 10.Rated Short-time Withstand current | 6.3KA |
| 11.Rated Duration of Short-circuit | 4s |
| 12.Mechanical Life | 30×times |
| 13.Electricity Life AC-3 | 25×times |
| 14.Electricity Life AC-4 | 10×times |
| 15.Rated Contactl Stroke | 8±1mm |
| 16.Contact Closing Force Due to bellows and atmosphere | 120±50N |
| 17.Counterforce at rated contact stroke | 190±60N |
| 18.Circuit resistance at rated contact atmosphere force | ≤45 µ |
| 19. Shelf life | 20years |
| 20.Contact erosion limit | 3mm |
| 21.Weight of moving parts | ≤1.2kg |
| MECHANICAL REQUIREMENTS(REF. VCB) | |
| 1.Added contact force | 500±50N |
| 2.Average opening speed | 1.0±0.2m/Sec |
| 3.Average closing speed | 0.6±0.2m/Sec |
| 4.Contact Bouncing Duration at closing operation | ≤2ms |
| 5.Contact Bouncing Bank Amplitude of Opeing Operation | ≤2mm |
| 6.Three-pole simultaneity | ≤1ms |
| Notes: 1.Meets or exceeds the electrical endurance requirements of class E2 for autoreclosing duty per IEC 62271-100 and GB 8738-2008. 2.* Rated Characteristics to be given on request | |
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