Maxeff Motors NMST250M-4/MAXEFF
Series: Other models
Not the right version? The data comes from vehicle registers holding many near-identical versions side by side. Photograph the data plate — we read make and type from it. Open the scanner e-mail address required
MaxEff Motors – other models: the collective page of MEPS-registered three-phase motors from Turkey outside the named ranges, frame size 250, 75 kW, four-pole, efficiencies up to 95.2%
This page gathers the MaxEff Motors three-phase motors the Australian energy-efficiency register could not assign to a named range. The designations recorded in the register, NMST250/4-350 and NMST250M-4/MAXEFF, carry the IEC frame size 250 and the pole count 4 directly in the name, supplemented by an output or build-length marker.
Read on 3 more paragraphs
The register lists here 2 versions, each with 75 kW rated output, both four-pole, for a 380/400 V or 380/400/415 V supply, with full-load efficiencies from 93.4 to 95.2% and at 75% load from 94 to 95.6%. Protection is IP55, the mounting code B3 (foot type); testing followed AS/NZS 1359.5:2004 with test method B or the 2019 GEMS determination with test method A. One of the two versions reaches the 2005 High Efficiency Level, corresponding roughly to the IE2 class. Manufacturing takes place in Turkey.
With efficiencies of up to 95.2% at full load, these motors sit at the upper end of what four-pole three-phase motors of this power class achieve; such high-efficiency 75 kW motors typically drive large pumps, compressors and fans in industry, where energy consumption over the service life clearly exceeds the purchase cost.
When buying used, bearing condition and a checked insulation resistance of the winding, the condition of shaft, key and fan cover, and a legible nameplate with frame size, pole count and efficiency class matter. Spares run through MaxEff's Turkish distribution.
Sources: SpecCodex register, model data: MaxEff Motors (weitere Modelle, MEPS-Registrierungen)
Technical data
Engine
| Rated output | 75 kWcorrect |
|---|
Dimensions and weights
| Weight | 520 kgcorrect |
|---|
Electrical data
| Rated voltage | 380/400 Vcorrect |
|---|---|
| Number of poles | 4correct |
| Protection class | IP55correct |
| Frame size | 250 M (foot)correct |
| Mounting (IEC 60034-7) | B3correct |
| Efficiency at full load | 93.4 %correct |
| Efficiency at 75 % load | 94 %correct |
| Efficiency at half load | 93.4 %correct |
Origin and approval
| Country of manufacture | Turkeycorrect |
|---|
Other data
| Standard applied | Greenhouse and Energy Minimum Standards (Three Phase Electric Motors) Determination 2019correct |
|---|---|
| Test method | IEC 60034-2-1 (Edition 2.0)correct |
Frequently asked questions
How much power does the Maxeff Motors NMST250M-4/MAXEFF have?
The Maxeff Motors NMST250M-4/MAXEFF delivers 75 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.
We do not sell machines. We ask the dealers who carry this model and come back with price and lead time.
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This page carries 25 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
Sources: Energy Rating — Australian government equipment register (retrieved August 2026) · How we check the data
Electric motor in 3D section
Turn the model, look inside and click an assembly — each one is explained.
