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Siemens 1CV3112B

Series: 1CV3

The photo shows the 1CV2252B from the same series. Source: mall.siemens.com.cn

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The Siemens 1CV3112B is a three-phase induction motor from the Siemens range. The rated output is 4 kW. The motor is four-pole, which at 50 Hz gives a synchronous speed of 1,500 rpm. The housing is frame size 112 M in foot-mounted form. The protection class is IP55. The efficiency is 88.6 per cent at full load, 89.2 per cent at 75 per cent load and 88.6 per cent at half load. The motor weighs 34 kg. The motor is built in Czechia. The figures come from the Australian MEPS register under the GEMS Determination 2019; measured to IEC 60034-2-1 (Edition 2.0). Rated output across the Siemens range ranges from 0.75 to 200 kW; the 1CV3112B sits at the bottom of that range with 4 kW. Its immediate neighbours are the 7.0015.0 below it with 3 kW and the 1 LA5 207-2 above it with 5.5 kW. 569 Siemens models across 4 series are on record.

Siemens – 1CV3 series at a glance

The 1CV3 series from Siemens comprises 82 models in the register, in the Electric motors group. Rated power ranges from 1 to 160 kW. Listed in the register: 1CV2182A, 1CV2222B, 1CV2252B, 1CV2280B.

Sources: SpecCodex-Register (eigene Daten)

Technical data

Engine

Rated output4 kWcorrect

Dimensions and weights

Weight34 kgcorrect

Electrical data

Number of poles4correct
Protection classIP55correct
Frame size112 M (foot)correct
Mounting (IEC 60034-7)B3, B5, B6, B7, B8, B9, B10, B14, B15, B20, B25, B30, B34, B35, V1, V2, V3, V4, V5, V6, V8, V9, V10, V14, V15, V16, V18, V19, V30, V31, V36correct
Efficiency at full load88.6 %correct
Efficiency at 75 % load89.23 %correct
Efficiency at half load88.59 %correct

Origin and approval

Country of manufactureCzechiacorrect

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 Siemens 1CV3112B have?

The Siemens 1CV3112B 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

1CV2182A

1CV2222B

1CV2252B

1CV2280B

1CV2282B

1CV3082A

1CV3083A

1CV3083B

1CV3090A

1CV3090B

1CV3090C

1CV3094A

Sources: Energy Rating — Australian government equipment register (retrieved August 2026) · How we check the data

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