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Product Usage
QBZ-1600/1140(660)-8 eight return circuit flame-proof integral switch is suitable for mine coal with explosive gas (methane) and coal dust. In the electric supply system with alternating current of 50Hz and voltage of 1140V (660V), it can start, stop, control and protect several triphase squirrel cage asynchronous motor or other equipment with triphase power. It can reverse in stopped state. This product adopts German Siemens PLC control system and Chinese touch screen display. It has stable performance and high reliability.
Technical Feature
Siemens PLC is adopted to control and protect the integral switch.
Data acquisition: high precise digital unit of multi-channel.
Protect functions: protections of over-current, short circuit, under voltage, overvoltage, leakage, phase locking and on-off operating overvoltage.
Chinese display of breakdown.
Technical Parameters
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Rated voltage |
1140V or 660V |
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Rated frequency |
50Hz |
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8 return circuit overall current |
1600A |
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Operation mode |
Unit operation; program-controlled operation; joint operation; double speed operation(unit double speed operation, double machine double speed operation) |
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Loop number |
8 return circuit： Include two 400A, two200A, two 120A, two 80A. |
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Dimension |
L×W×H=3010×808×1020（mm） |