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W21 Aluminium Multimounting Frame – Efficiency E2
Weg Electric Motors Available to Order

W21 Aluminium Multimounting Frame – Efficiency E2

The Weg W21 Aluminium Multimounting Frame – Efficiency E2 is an industrial electric motor range designed for industrial, agricultural and commercial drive applications. For these installations, it helps support dependable operation, efficient performance and easier equipment monitoring through durable stainless-steel components.
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Applications

  • Industrial electric motor
  • Pumps
  • Compressors
  • Conveyors
  • Fans
  • Cooling and ventilation systems
  • Machine tools
  • Packaging equipment
  • Grinders
  • Presses and other continuous-duty machinery

Key Features

  • Aluminium Frames 63 up to 132M/L
  • Degree of protection IP 55
  • Three-phase, Multivoltage
  • Squirrel cage Motor
  • Ball Bearings
  • Class “F” insulation T 80K
  • Service Factor: 1,0
  • Output from 0,12kW up to 11kW
  • Dimensions IEC 72 and DIN 42673
  • Continuous Duty
  • 40 °C at 1000 m.a.s.l
  • Mounting B3T
  • Stainless steel nameplate
  • Design N
  • Sealing: Lip Seal
  • Removeable Feet
  • Convert to Pad Mounted
  • Paint Color: RAL 6002

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Technical specifications

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Brand Weg
Model W21 Aluminium Multimounting Frame – Efficiency E2
Equipment Category Electric Motor
Output From 0,12kW up to 11kW
IP Rating 55
Insulation Class F

Frequently asked questions

What does “multimounting” mean on a W21 motor?
The W21 has removable feet and a terminal box that can be rotated in 90-degree increments. This allows the mounting and cable-entry position to be changed without machining or modifying the motor feet.
Can I replace a cast-iron motor with a W21 aluminium multimounting motor?
The W21 multimounting design is interchangeable with existing cast-iron frame motors in suitable applications. Contact us to confirm the frame size, shaft, mounting and electrical compatibility.
Is the W21 aluminium motor lighter than a cast-iron motor?
Yes. Its die-cast aluminium frame provides a lighter motor option while supporting effective heat dissipation.
What does E2 efficiency mean for an electric motor?
E2 refers to a higher-efficiency motor classification. A correctly selected E2 motor can reduce energy losses and operating costs compared with a standard-efficiency motor.

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