Withdrawable type
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1. General Description
1.1 Application: In the power system of 3.6 V, for control, protection and monitoring.VCBs produced
By CNHK or VCBs produced by other manufactures could be installed in the switchgear panel.
1.2 Standards : IEC 62271-200
1.3 Parameters: Rated voltage: 3.6 V
1.4 Rated current: 630-5000A
1.5 Rated short-circuit breaking current: 16 kA
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2.Features:
2.1.Compact design
2.2.Easy operation and installation
2.3.Reliable interlock
2.4.Less Maintenance
3.Technical Data
| No. | Item | Unit | Data | |
| 3.1 | Rated voltage | kV | 3.6,7.2,12 | |
| 3.2 | Rated current of circuit breaker | A | 630,1250,1600,2000,2500,3150,4000,5000 | |
| Rated current of switchgear | A | 630,1250,1600,2000,2500,3150,4000,5000 | ||
| 3.3 | Rated frequency | Hz | 50 | |
| 3.4 Â |
Rated short-circuit breaking current | kA | 16,20,25,31.5,40,50 | |
| Rated short-time withstand current | kA | 16,20,25,31.5,40,50 | ||
| Rated short circuit continuous time | s | 4 | ||
| 3.5 | Rated peak withstand current | kA | 40,50,63,80,100,125 | |
| Rated short-circuit closing current(peak) | kA | 40,50,63,80,100,125 | ||
| 3.6 | Rated insulation level: 1min power frequency withstand voltage | kV | 24,32,42 between poles, pole to earth | |
| kV | 24,32,48 between open contacts | |||
| 3.7 | Rated insulation level: Lighting impulse withstand voltage(peak) | kV | 40,60,75 between poles, pole to earth | |
| kV | 46,70,85 between open contacts | |||
| 3.8 | Rated power frequency withstand voltage | kV | 95/1min | |
| 3.9 | Protection level | Switchgear shell | Â | IP3X |
| Compartments(door opened) | Â | IP2X when the CPT and CB doors are open. | ||
      2. See technical parameters of ZN63A(VS1)-12 in related product of our company.
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