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Permenent Magnetic Intelligent Outdoor Vacuum Circuit Breaker

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seat: Asia-Pacific China
Validity to: Long-term effective
Last update: 2016-12-05 19:20
Browse the number: 23
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permenent magnetic intelligent outdoor vacuum circuit breaker ZWM8-12 permenent magnetic intelligent outdoor high-voltage vacuum circuit breaker(hereinafter called intelligent breaker) is applied for breaking, on or off of load current in AC three-phase power system of rated 10-12KV with 50/60Hz, it owns functions of overload and short protection, fast breaking protection, time lapse delay and auto matic reclosing, it can also be equipped with arrestor or disconnecting ( circuit breaker and disconnecting switch combination, hereinafter called combination intelligent circuit breakers) according to customers requirement. This intelligent breaker owns power supply itself, available for remote control, interfacs of CT,PT are for remote control, can meet the requirements of ?remote control.ItemUnitsParametersRated voltageKV12Rated insulation level1 min PF withstand voltageDry42Wet34Lightening impulse withstand voltage(peak)75Rated currentA400.630Rated short circuit making currentKA20.16.12.5Rated operating sequence0-0.3s-co-180s-COBreaking t short circuit breaking timestimes30Rated short circuit closing ?current(peak)50Rated peak withstand currentKA50Rated short time withstand current20.16.12.5Duration of rated short circuit breakings4Opening time (shunt trip)Max. operating voltagems15~50Rated operating voltage15~50Min. operating voltage30~60Closing time25~50Total breaking time≤100Arc time≤20Mechanical lifeTimes10000Closing frequencyJ70Energy storage motor rated input powerW≤220Rated operating voltage and subsidiary loop rated voltageVAC/DC220 110,24AC/DC220 110,24Energy storage time under rated voltageS<8Over current releaseRated currentA5Accuracy of release current%±10Over current adjustA1~9Quick break adjustms6~2080~500Remote control distancem30The number of overlappingTimes1~3


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