HSW2 series Intelligent Type Air Circuit Breaker which divided into 2000A and 4000A shell frame level is competently applied in AC 50Hz electrical distribution grid with rated voltage AC400V and rated current 630A~ 4000A for power distribution, circuit and power equipment protection against damage due to overload, under voltage, short circuit and earth fault. In normal conditions, such Circuit Breaker may also used for infrequent start of motors. Rated insulation voltage of The Circuit breaker is 1000V, rated impulse withstand voltage is 12 kV.
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Type |
HSW2-2000 |
HSW2-4000 |
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Rated current （A） 40℃ |
630、800、1000、1250、1600、2000 |
2000、2500、2900、3200、4000 |
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Rated voltage Ue（V） |
AC400 |
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Rated insulation Voltage Ui（V） |
1000 |
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Rated impulse withstand Voltage Uimp（V） |
12000 |
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Power frequency withstand voltage U（V）1min |
3500 |
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Pole number |
3P、4P |
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Total breaking time (without additional time delay)（ms） |
20～30 |
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Closing time（ms） |
MAX 70 |
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Rated limited short circuit breaking capacity Icu(kA)(effective value) |
65 |
80 |
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Rated service short circuit breaking capacity Ics(kA)(effective value) |
40 |
60 |
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Rated short circuit making current Icm(kA)(effective value) |
143 |
176 |
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Rated short time withstand current(1s)(effective value) |
40 |
60 |
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Operating performance(times) |
electrical endurance |
6500 |
2500 |
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Mechanical endurance |
Mechanical endurance |
13500 |
5000 |
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With maintenance |
20000 |
10000 |
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