Siemens 1LA9 166–2KA..
Series: 1LA9
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
Siemens 1LA9 – aluminium standard motors in frame sizes 80 to 200: 1.1 to 37 kW, type code 1LA9 xxx-xKAxx
1LA9 is the aluminium series from Siemens' 1LA family – the standard motor of the small and medium frame sizes for pumps, fans, compressors and general machine building, listed for years in every catalogue and fitted in many OEM machines. The type code follows Siemens' order-number logic: 1LA for the aluminium family, the 9 for the execution with increased output per frame size, then the three-digit number for frame size and length (083 = frame 80, 090/096 = 90, 106/107 = 100, 113/114 = 112, 130/131/133 = 132, 163/164/166 = 160, 183/186 = 180, 206/207 = 200), the digit after the hyphen for the number of poles, KA for the winding, and the final positions for mounting and options.
Read on 3 more paragraphs
The register lists 60 versions from frame size 80 to 200 with rated outputs from 1.1 to 37 kW, two-, four- and six-pole, rated voltage 415 V. Full-load efficiencies lie between 82 and 94 %, protection is IP55 throughout, mounting IM B3 or IM B5. The recorded weights of 12 to 214 kg show the lightweight construction: a 1LA9 in frame 132 weighs clearly less than a cast-iron motor of the same output. Manufacturing locations per registration: Czechia and Germany.
The special feature of the 9 execution is the higher output utilisation: in many frame sizes the 1LA9 delivers one power step more than the base type 1LA7 at the same shaft height – an advantage when the installation space is fixed.
When replacing, interchangeability via shaft height, flange and shaft end applies as with all IEC motors; the efficiency class of the 1LA9 is mostly IE1 or IE2, and the successor 1LE1 in IE3 usually has the same connection dimensions.
Sources: SpecCodex register, model data: Siemens 1LA9 (MEPS-Registrierungen), Siemens Niederspannungsmotoren (manufacturer)
Technical data
Engine
| Rated output | 18.5 kWcorrect |
|---|
Dimensions and weights
| Weight | 102 kgcorrect |
|---|
Electrical data
| Rated voltage | 415 Vcorrect |
|---|---|
| Number of poles | 2correct |
| Protection class | IP55correct |
| Frame size | 160 L (foot)correct |
| Mounting (IEC 60034-7) | MB3, IMB5correct |
| Efficiency at full load | 92.3 %correct |
| Efficiency at 75 % load | 92.5 %correct |
| Efficiency at half load | 91 %correct |
Origin and approval
| Country of manufacture | Czechia, Germanycorrect |
|---|
Other data
| Standard applied | AS/NZS 1359.5:2004correct |
|---|---|
| Test method | IEC 60034-2-1 (Edition 2.0)correct |
Frequently asked questions
How much power does the Siemens 1LA9 166–2KA.. have?
The Siemens 1LA9 166–2KA.. delivers 18.5 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
1 LA9 209-2
1LA9
1LA9 083–2KA..
1LA9 083–2KA10
1LA9 090–2KA..
1LA9 090–2KA10
1LA9 090–4KA..
1LA9 090–4KA10
1LA9 096–2KA..
1LA9 096–2KA10
1LA9 096–4KA..
1LA9 096–4KA10
Sources: Energy Rating — Australian government equipment register (retrieved August 2026) · How we check the data
Electric motor in 3D section
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