W21 – Cast Iron Frame – Standard Efficiency – IE1 – 50°C

Typical 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

Three-phase, multivoltage, IP55, TEFC

• Output: 0.12 up to 315 kW
• Frames: 63 up to 355M/L
• Voltage: 220-240/380-415V (up to 100L) / 380-415/660V (from 112M and up)
• Class “F” insulation (>ΔT=80K)
• Continuous duty: S1
• Design N
• Ambient temperature: 50°C, at 1000 m.a.s.l.
• Squirrel cage rotor/Aluminium die cast
• V’Ring on both endshields
• Stainless steel nameplate AISI 304
• Performance characteristics according to IEC 34
• Regreasing nipple from frame 225S/M and above
• Metric threaded cable entries on the terminal box
• Thermistors (1 per phase) fitted in frame 160M and above
• Suitable for inverter duty applications
• Color: RAL 5009*For additional details about Inverter operation, please contact our technical support.
  *Special Insulation for voltage above 575V

Optional Available

• Degree of Protection: IP56, IP65 or IP66
• Bearing seals:
  • Lip seal
  • Oil seal
  • Labyrinth taconite seal and W3seal for frames 90S and above
• Thermal protection:
  • Thermistors: frame 132M and below
  • Thermostats
  • RTD-PT 100
• Space heaters
• Class “H” insulation
• Roller bearings for frame 160M and above

More options available, on request