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      Magnetic pneumatic box


      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