WEG K21 BRKLE2

The register lists five versions with 5.5 kW rated output throughout, four poles, and an efficiency span of 89.2 to 90.3% at full load and 89.1% throughout at 75% load. Frame size stays at 132 across all models, protection is IP55 throughout, and the voltage entry is 415 V. Manufacturing takes place in Brazil, tested under the AS/NZS 1359.5:2004 standard, using test method B throughout. The mounting code covers practically the whole IEC spectrum across all five versions, from foot forms B3 to B8, through flange forms B14, B34 and B35, to vertical forms V1 to V36.

With five different build variants at uniform frame size, K21 covers an output step in the upper band of WEG's broad programme of IEC standard motors, through which the group ranks among the largest electric motor manufacturers worldwide.

When buying used or swapping, check bearing condition, insulation resistance of the winding, visible overheating traces on the terminal box and fan cover, and a legible nameplate showing frame size, pole count and build variant. Given the wide choice of mounting codes, it is worth checking before purchase which of the many bolt patterns actually fits the installation point. Spare parts and support run through the WEG sales network.