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Siemens 1LG6283-2AB96

Series: 1LG6

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The Siemens 1LG6283-2AB96 is a three-phase induction motor from the Siemens range. The rated output is 90 kW. The motor is two-pole, which at 50 Hz gives a synchronous speed of 3,000 rpm. The rated voltage is 400 V. The housing is frame size 280 M in foot-mounted form. The protection class is IP55. The efficiency is 95 per cent at full load, 95 per cent at 75 per cent load and 93.5 per cent at half load. The motor weighs 615 kg. At full load it delivers 288 Nm. The mounting arrangement to IEC 60034-7 is B35. The motor is built in Germany. The values are recorded in the Australian MEPS registration under the GEMS Determination 2012; measured to IEC 60034-2-1 (Edition 2.0). Rated output across the Siemens range ranges from 0.75 to 200 kW; the 1LG6283-2AB96 sits in the middle of that range with 90 kW. Its immediate neighbours are the 1LG4283-4AA96 below it with 82.8 kW and the 1CV3286B above it with 110 kW. 569 Siemens models across 4 series are on record.

Siemens 1LG6 – cast-iron motors in frame sizes 180 to 315: 11 to 200 kW, the type code 1LG6 xxx-xAAxx explained

1LG6 is Siemens' classic cast-iron series for the medium and large IEC frame sizes – the motor that was the standard solution in cooling towers, pumping stations, cement mills and rolling mills for decades before the 1LE1 and Simotics SD ranges replaced it. The Siemens type code is an order number: 1LG stands for the cast-iron family, the 6 for the generation, the three-digit number encodes frame size and frame length (183 = frame 180 short, 186 long, 206/207 = 200, 220/223 = 225, 253/258 = 250, 283/288 = 280, 310/313/316 = 315), the digit after the hyphen the number of poles (2, 4, 6, 8) and the letters AA or AB the winding and voltage execution; the last positions define mounting and options and are left as dots in many registrations.

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The register lists 90 versions from frame size 180 to 315 with 11 to 200 kW, two- to eight-pole, rated voltage 400 to 415 V. Full-load efficiencies lie between 88.7 and 96.5 %, protection is IP55 throughout, mounting in almost all cases IM B3 (foot) or IM B5 (flange). Recorded weights run from 155 to 1,245 kg – an eight-pole 315 is a machine set in place by crane. Czechia (Mohelnice/Frenštát plants) and Germany are recorded as manufacturing locations.

The series stands for the time before the IE3 mandate: many 1LG6 are classified IE1 or IE2 but keep running thanks to their robust design – cast iron, generous bearings, regreasing facility from frame 225 upward.

When replacing: shaft height, shaft end and flange are compatible with any make under IEC 60072; an IE3 successor of the same frame size quickly recoups its price on continuous-duty machines but may bring a slightly higher starting current that contactor and protection must tolerate.

Sources: SpecCodex register, model data: Siemens 1LG6 (MEPS-Registrierungen), Siemens Niederspannungsmotoren (manufacturer)

Technical data

Engine

Engine family1LG6283-2AB96correct
Engine families1LG6283-2AB96correct
Rated output90 kWcorrect

Dimensions and weights

Weight615 kgcorrect

Electrical data

Rated voltage400 Vcorrect
Number of poles2correct
Protection classIP55correct
Frame size280 M (foot)correct
Mounting (IEC 60034-7)B35correct
Efficiency at full load95 %correct
Efficiency at 75 % load95 %correct
Efficiency at half load93.5 %correct

Origin and approval

Country of manufactureGermanycorrect

Other data

Standard appliedGreenhouse and Energy Minimum Standards (Three Phase Electric Motors) Determination 2012correct
Test methodIEC 60034-2-1 (Edition 2.0)correct

Frequently asked questions

How much power does the Siemens 1LG6283-2AB96 have?

The Siemens 1LG6283-2AB96 delivers 90 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 28 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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Sources: Energy Rating — Australian government equipment register (retrieved August 2026) · How we check the data

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