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Lafert AMHE112MAA2

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The Lafert AMHE112MAA2 is a three-phase induction motor from the Lafert range. The rated output is 4 kW. The motor is two-pole, which at 50 Hz gives a synchronous speed of 3,000 rpm. The housing is frame size 112 M in foot-mounted form. The protection class is IP55. The efficiency is 86.8 per cent at full load, 87.2 per cent at 75 per cent load and 86.4 per cent at half load. Mounting arrangements to IEC 60034-7: B3, B5, B14, B34 and B35. The motor is built in Italy. The data is based on the Australian MEPS registration under the GEMS Determination 2019; measured to IEC 60034-2-1 (Edition 2.0). Rated output across the Lafert range ranges from 0.75 to 22 kW; the AMHE112MAA2 sits in the lower part of that range with 4 kW. Its immediate neighbours are the AMPE112M/A4 below it with 3.8 kW and the AMPE 132M/A4 MPE13/A4A-53311 above it with 4.8 kW. 97 Lafert models are on record. The model is listed under Electric motors. 22 verified figures from 1 source are on file.

Lafert – other models: the collective page of MEPS-registered three-phase motors from the Italian maker outside the named ranges, frame sizes 80 to 160, 1.1 to 22 kW, 2- to 6-pole

This page gathers the Lafert three-phase motors the Australian energy-efficiency register (GEMS/MEPS) could not assign to a named range. Lafert is an Italian electric-motor maker headquartered in San Donà di Piave in the province of Venice, founded in 1955 and still family-owned; the company builds three-phase motors, geared motors and drives for the European and international market. The designations recorded in the register, such as AMHE112M AA4 or AMHE132S ZA2, follow a modular scheme of range code (AMHE, AMEE, AMF, AMBY), IEC frame size and a code for pole count and winding variant.

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The register lists here 46 versions with 1.1 to 22 kW, two- to six-pole, full-load efficiencies from 78.99 to 91.84% and at 75% load from 78.71 to 92.22%. Frame sizes run from 80 to 160 under IEC, protection is practically always IP55, and the mounting codes cover the common foot and flange versions with B3, B5, B14, B34 and B35. Italy alone is recorded as the manufacturing country. Testing followed the 2019 and 2012 GEMS determinations, with test methods A, 2-1-1B and B; of the 38 motors with a documented classification, only one reaches the 2005 High Efficiency Level, the large rest remain without a higher efficiency class.

Lafert positions itself in the Italian and European markets as an independent maker alongside large international groups such as ABB or Siemens, with a broad range of IEC standard motors for pumps, fans, conveyors and general drive tasks in industry and trade.

When buying used, what matters is bearing condition and a checked insulation resistance of the winding, visible overheating marks on the terminal box and fan cover, the condition of shaft and key, and a legible nameplate with frame size, pole count and efficiency class; since most of the models listed here carry no documented High Efficiency classification, it is worth checking the build year before running one on a variable-speed drive. Spares and support run through Lafert's Italian distribution.

Sources: Kennwerte der Modelle Lafert (weitere Modelle, MEPS-Registrierungen), Lafert (Hersteller)

Technical data

Engine

Rated output4 kWcorrect

Electrical data

Rated voltage400/690 Vcorrect
Number of poles2correct
Protection classIP55correct
Frame size112 M (foot)correct
Mounting (IEC 60034-7)B3, B5, B14, B34, B35correct
Efficiency at full load86.8 %correct
Efficiency at 75 % load87.2 %correct
Efficiency at half load86.4 %correct

Origin and approval

Country of manufactureItalycorrect

Other data

Standard appliedGreenhouse and Energy Minimum Standards (Three Phase Electric Motors) Determination 2019correct
Test methodIEC 60034-2-1 (Edition 2.0)correct

Frequently asked questions

How much power does the Lafert AMHE112MAA2 have?

The Lafert AMHE112MAA2 delivers 4 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 23 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

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