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AK Series

Aluminum Motors

TECHNICAL DATA

Three-Phase IEC Motors – Frame Sizes IEC 56 to IEC 132


Voltage Range

  • Up to 3 kW (4 HP):
    380–420 V / 220–240 V (Y/Δ) – 50 Hz

  • From 4 kW (5.5 HP) and above:
    660–725 V / 380–420 V (Y/Δ) – 50 Hz


Main Applications

  • Fans
  • Pumps
  • Gearboxes
  • Compressors
  • Textile machinery
  • Food industry

Standard Features

  • Industrial series aluminium housing motors, lightweight and robust
  • Protection degree: IP55
  • Insulation class F, with temperature rise limited to 80°C
  • Removable feet, allowing terminal box positioning on right or left-hand side
  • Terminal box rotatable 180° for flexible cable entry
  • SKF or NSK bearings for high reliability
  • Cast iron bearing housings for enhanced durability
  • Standard color: RAL 5010 (Blue)

Optional Features

  • Special voltages and frequencies on request
  • Insulation class H for higher thermal performance
  • Brake kits available for all motor sizes
  • Forced cooling for constant torque operation with frequency inverters
  • Higher protection classes: IP56 / IP65
  • Cast iron flanges and endshields for added robustness
  • PTC or PT100 sensors in windings for thermal monitoring
  • Reduced frame motors (non-IEC) for compact designs
  • Anti-condensation heaters to prevent moisture buildup
  • Roller bearings on drive end for high radial loads
  • Double shaft extensions for dual-output needs
  • Custom cable executions, with terminal box or direct cable connection
  • Epoxy resin encapsulated terminal box for harsh environments
  • Epoxy resin encapsulated windings for enhanced insulation
  • Silicone encapsulated terminal box for extra protection