Electric motors and machines

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K21R

VEM EX-TD-A22 MOTORS

Dust-classified motor for potentially explosive environment, zone 22, Ex II 3D, Ex td IIIB T125 °C Dc (Ex II 3D, Ex td A22, IP55 T125 °C)

  • frame sizes 56 – 355
  • power range 0,09 kW – 450 kW
  • 400/690 V 50 Hz
  • mode of operation S1
  • relubrication device (NS) as standard starting from frame size IEC 200
  • insulated bearing, thermistors (TPM), 1 kpl/phase as standard starting from frame size IEC 250
  • speeds 3000, 1500, 1000, 750 1/min
  • robust, low-vibration grey-cast iron design
  • protection class IP 55 as standard, IP 65 for conductive dust
  • thermal class 155 (F) as standard, class 180 (H) available as an option
  • cooling method IC 411
  • energy efficiency classes IE3, IE2, IE1 and non-classified
  • available also classified for frequency converter operation
  • voltage range “zone A” as standard, “zone B” also available

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