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WEG K21B EXNE2

Series: Other models

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The WEG K21B EXNE2 is a three-phase induction motor built by WEG. The rated output is 5.5 kW. The motor is eight-pole, which at 50 Hz gives a synchronous speed of 750 rpm. The rated voltage is 415 V. The housing is frame size 160 M in foot-mounted form. The protection class is IP55. The efficiency is 87 per cent at full load, 86.1 per cent at 75 per cent load and 83 per cent at half load. The motor weighs 130 kg. At full load it delivers 72.16 Nm. The motor is built in Brazil. The figures come from the Australian MEPS register under standard AS/NZS 1359.5:2004; measured to IEC 60034-2-1 (Edition 2.0). Rated output across the WEG range ranges from 0.75 to 160 kW; the K21B EXNE2 sits at the bottom of that range with 5.5 kW. Its immediate neighbours are the KTE198 PHEM below it with 4 kW and the K24 ALE2 above it with 7.5 kW. 433 WEG models are on record. The model is listed under Electric motors. 24 verified figures from 1 source are on file.

Technical data

Engine

Rated output5.5 kWcorrect

Dimensions and weights

Weight130 kgcorrect

Electrical data

Rated voltage415 Vcorrect
Number of poles8correct
Protection class55correct
Frame size160 M (foot)correct
Mounting (IEC 60034-7)B3, B5, B35, B34, B14, B6, B7, B8, V5, V6, V1, V3, V15, V36, V18, V19correct
Efficiency at full load87 %correct
Efficiency at 75 % load86.1 %correct
Efficiency at half load83 %correct

Origin and approval

Country of manufactureBrazilcorrect
Standard appliedAS/NZS 1359.5:2004correct
Test methodIEC 60034-2-1 (Edition 2.0)correct

Frequently asked questions

How much power does the WEG K21B EXNE2 have?

The WEG K21B EXNE2 delivers 5.5 kW.

What to check before buying

  • Match the data plate against the order: frame size, mounting and rating have to agree.
  • Check the ingress rating against the installation site — outdoors or in dust the demands differ.
  • Hold the mounting form and dimensions against the existing seat before ordering.
  • The pole count sets the speed — when replacing an older unit, compare this first.
  • For used units, ask about winding condition and bearing play.
  • Ask about parts availability for this series — the running costs hang on it.

A general list for this type of machine — no substitute for an inspection or an appraiser.

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This page carries 24 individual figures for this model. They come from 1 recorded source; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.

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