W21 – Cast Iron Frame – Standard Efficiency – IE1 – GOST

Applications

• Pumps
• Fans
• Crushers
• Conveyors
• Machine tools
• Milling applications
• Centrifugal machines
• Presses
• Elevators
• Looms
• Grinders
• Woodworking
• Cooling
• Packaging equipment
• Other severe duty applications

Standard Features

EFF2 Improved Efficiency

• Output: 11 up to 200kW
• Multivoltage – (220-240/380-415//440-460V or 380-415/660-690//440-460V)
• Self ventilated (TEFC)
• Cast iron frames (132S up to 315S/M)
• Mounting: B3T
• Degree of Protection: IP55
• Terminal block
• Squirrel cage rotor/Aluminium die cast
• Special features for low ambient temperature
• V’Ring on both endshields
• Stainless steel nameplate AISI 316
• Class “F” insulation
• Continuous duty – S1
• Ambient temperature: -45°C up to 40°C , 1000 m.a.s.l.
• Regreasing nipples from frame 225S/M and above
• Thermistors (1 per phase) fitted in frame 160M and above
• Metric thread cable entries in terminal box
• Suitable for Inverter Duty applications*
• Paint color: RAL 5009

*For additional details about Inverter operation, please contact our technical support.
*Special Insulation for voltage above 575V

Optional Features

• Single voltage (other voltages)
• Degree of Protection: IP56, IP65 or IP66
• Other mounting configurations
• Ventilation Motor, TEAO
• Forced Ventilation, TEBC
• Thermal protection:
  • Thermistors for frame 132S and below (Standard for frame 160 and above)
  • Thermostats
  • RTD-PT 100
• Space heaters
• Class “H” insulation
• Roller bearings for frame 160M and above