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Circuit Breakers 
ZN7-400/1.14 AC Vacuum Circuit Breaker
ZN7-400/1.14 AC Vacuum Circuit Breaker
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ZN7-400/1.14 AC Vacuum Circuit Breaker
Vacuum circuit breaker has Small contact stroke, small size, light weight, low operating power, quick, short arcing time. Isolation performance of the contacts is good after arc-extinguishing, failure capability is better around breaking area; slight combustion loss when breaking the current of contactors, long life, low noise; Used in high frequency operation.
Specification | ||
| Rated voltage | V | 1140 (660) |
| Rated current | A | 400 |
| Ultimate making capacity | kA | 7.5 (9) |
| Inherent opening time | ms | <=30 |
| Inherent closing time | ms | <=100 |
| Closing Bounce time | ms | <=2 |
| Mechanical life | Times | 2*104 |
| Electrical Life | Times | 3*103 |
| Weight | kg | 18 |
| Closing power supply voltage | V (AC) | 127 |
| under-voltage, shunt DC current | V (DC) | 48 |
| Closing power | W (transient) | 1152 |
| Opening power | W | 31 |
| under-voltage power | W | 5 |
| Auxiliary contact | 4 pairs NO, 4 pairs NC | |
| Auxiliary contact capacity | Ue:AC380V Ie:10A | |
Check pdf for all details:
For other products please check product selection table: AC Vacuum Contactor
ZN7-400/1.14 AC Vacuum Circuit Breaker
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