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Birkenbeul 8APE90S-4

Series: Other models

Source: https://birkenbeul.de/portfolio/normmotoren/

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The Birkenbeul 8APE90S-4 is a three-phase induction motor from the Birkenbeul range. The rated output is 1.1 kW. The motor is four-pole, which at 50 Hz gives a synchronous speed of 1,500 rpm. The housing is frame size 90 S in foot-mounted form. The protection class is IP55, IP56, IP65 and IP66. The efficiency is 84.5 per cent at full load, 85.1 per cent at 75 per cent load and 83.8 per cent at half load. The motor is built in Germany. The values are recorded in the Australian MEPS registration under the GEMS Determination 2019; measured to IEC 60034-2-1 (Edition 2.0). Rated output across the Birkenbeul range ranges from 1.1 to 4 kW; the 8APE90S-4 sits at the bottom of that range with 1.1 kW. Its immediate neighbours are the 6APE112M-4 above it with 4 kW. 3 Birkenbeul models are on record.

Birkenbeul – other models: the collective page of MEPS-registered three-phase motors outside the named ranges, a German maker from Rott an der Sieg, 1.1 to 4 kW, four-pole, IP55 to IP66

This page gathers the Birkenbeul three-phase motors the Australian energy-efficiency register could not assign to a named range. Birkenbeul is a German maker of electric motors based in Rott an der Sieg; the types recorded in the register, 6APE112M-4, 8APE90S-4 and 8APE90S-4-IE3, show with the IE3 suffix that one of the versions reaches the international IE3 efficiency class.

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The register lists here 3 versions with 1.1 to 4 kW, all four-pole, with full-load efficiencies from 84.5 to 87.1% and at 75% load from 85.1 to 87.3%. Protection ranges from IP55 to IP66, frame sizes from 90 to 112. Germany and China are recorded as manufacturing countries; testing followed the 2019 GEMS determination with test methods 2-1-1B and A; two of the three motors reach the 2018 High Efficiency Level (roughly IE3), one remains unclassified.

Motors in this power class between 1.1 and 4 kW and frame size 90 to 112 are common drive technology for pumps, fans and smaller conveying plant; registration under the Australian GEMS standard shows that Birkenbeul certifies its range for the Australian market too.

When buying used or replacing, what matters is bearing condition and a checked insulation resistance of the winding, visible overheating marks on the terminal box and fan cover, and a legible nameplate with frame size, pole count and efficiency class; anyone wanting to run the motor on a variable-speed drive should check its inverter suitability beforehand. Spares and support run through Birkenbeul's sales channel.

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

Technical data

Engine

Engine family	8APE90S-4-IE3correct
Engine families	8APE90S-4-IE3correct
Rated output	1.1 kWcorrect

Electrical data

Number of poles	4correct
Protection class	IP55, IP56, IP65, IP66correct
Frame size	90 S (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 load	84.5 %correct
Efficiency at 75 % load	85.1 %correct
Efficiency at half load	83.81 %correct

Origin and approval

Country of manufacture	Germanycorrect

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 Birkenbeul 8APE90S-4 have?

The Birkenbeul 8APE90S-4 delivers 1.1 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 22 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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