Related standards for electric chain hoist motor

National standards for protection class, cooling method and installation type of electric chain hoist motor casing:
 
* The motor enclosure protection level should meet the requirements of IP54 of GB4942.1 (except for the fan cover and brake seat);
 
* The cooling method of electric chain hoist motor should comply with IC0041 or IC0141 in GB/T1993;
 
* The installation type of the motor should comply with IM3001 (IMBS), IM4401 (IMB9) and IM5102 in GB997.
 
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