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Baldor M4A90S-4B5B

Series: Other models

Source: https://www.abb.com/global/en/products/7bem4110t-bg

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Baldor lists the M4A90S-4B5B as a three-phase induction motor. The rated output is 1.1 kW. The motor is four-pole, which at 50 Hz gives a synchronous speed of 1,500 rpm. The rated voltage is 400 V. The housing is frame size 90. The protection class is IP55. The efficiency is 84.9 per cent at full load, 84.7 per cent at 75 per cent load and 82.6 per cent at half load. The mounting arrangement to IEC 60034-7 is B5. The motor is built in China. The figures come from the Australian MEPS register under the GEMS Determination 2012; measured to AS 1359.102.1:1997. Rated output across the Baldor range ranges from 0.75 to 1,119 kW; the M4A90S-4B5B sits at the bottom of that range with 1.1 kW. Its immediate neighbours are the ZDNMM3581 below it with 0.75 kW and the 05E535W710G1 above it with 1.5 kW. 841 Baldor models are on record. The model is listed under Electric motors. 22 verified figures from 1 source are on file.

Technical data

Engine

Rated output1.1 kWcorrect

Electrical data

Rated voltage400 Vcorrect
Number of poles4correct
Protection classIP55correct
Frame size90correct
Mounting (IEC 60034-7)B5correct
Efficiency at full load84.9 %correct
Efficiency at 75 % load84.7 %correct
Efficiency at half load82.6 %correct

Origin and approval

Country of manufactureChinacorrect
Standard appliedGreenhouse and Energy Minimum Standards (Three Phase Electric Motors) Determination 2012correct
Test methodAS 1359.102.1:1997correct

Frequently asked questions

How much power does the Baldor M4A90S-4B5B have?

The Baldor M4A90S-4B5B delivers 1.1 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 22 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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Other models in this series

05E535W710G1

06H874W461Z1

07C152X578G4

07D015W860G1

07H110R571G1

07H531W722G2

07H549W280G1

07K349Y251M1

07L304Y120G1

09-A000-0104

09C101Y147G1

09C102X412G5

Sources: [1]

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