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  • Magnetic pneumatic box

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    Magnetic pneumatic box


    1. Purpose and main functions


    It is suitable for three-phase motor, 50 Hz motor, and DC motor. Starting box has direct starting, star delta starting, autotransformer starting or variable frequency soft starting. There are two types of starting box: wall mounted box type and floor cabinet type, and two protection levels of ip22t and IP44 are optional.


    2. Model meaning



    3. Circuit diagram code


    11: Direct start, irreversible, manual control
    12: Direct start, irreversible, manual - automatic control
    13: Direct start, irreversible, manual control with remote control
    14: Direct start, irreversible, manual automatic control with remote control
    21: direct start, reversible, manual control
    22: direct start, reversible, manual automatic control
    31: Y - △ start, manual control
    32: Y - △ start, manual automatic control
    41: autotransformer primary start, automatic control
    42: autotransformer primary starting, manual automatic control
    43: two stage starting of autotransformer, automatic control
    44: multi stage starting of autotransformer with step-down resistor, automatic control

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