Bonfiglioli BX 160MB 4
Series: BX
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
Bonfiglioli BX – three-phase motors from Bologna: MEPS-registered standard motors, frame sizes 90 to 160, 1.5 to 15 kW, 4-pole, IP54 to IP56 protection, efficiency up to 93.1%
Bonfiglioli is an Italian manufacturer of gearmotors and drive technology headquartered in Bologna. The BX range denotes the company's three-phase standard motors, tested and registered under the Australian energy-efficiency register MEPS. In the type designation, for example BX 132MA 4 or BX 160L 4, the number after the range code corresponds to the IEC frame size and the final digit to the pole count; both match the frame-size and pole-count values carried in the register.
Read on 3 more paragraphs
The register lists here 6 versions with 1.5 to 15 kW rated output, all 4-pole, at voltages of 230/400 V and 400/690 V. Full-load efficiency ranges from 85 to 93.1%, and at 75% load from 85.7 to 93.5%. Frame sizes run from 90 to 160, protection ratings from IP54 to IP56. The motors are built in mounting forms B3, B5, B14, B34 and B35, two of them additionally in the vertical forms V1, V5 and V6.
As the standard-motor programme of a group best known for its gearmotors and frequency inverters, the BX range covers the basic demand for three-phase induction motors for pumps, fans and conveyors, competing with the standard-motor programmes of ABB, Siemens and WEG. The range is manufactured in Italy.
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, and a legible nameplate with frame size, pole count and protection rating. Anyone wanting to run the motor on a variable-speed drive should note the voltage variant (230/400 V or 400/690 V). Spares and support run through the Bonfiglioli sales network.
Sources: SpecCodex register, model data: Bonfiglioli BX, Bonfiglioli (manufacturer)
Technical data
Engine
| Rated output | 11 kWcorrect |
|---|
Electrical data
| Rated voltage | 400/690 Vcorrect |
|---|---|
| Number of poles | 4correct |
| Protection class | IP55, IP56correct |
| Frame size | 160 M (foot)correct |
| Mounting (IEC 60034-7) | B3, B5, B14, B34, B35correct |
| Efficiency at full load | 92.9 %correct |
| Efficiency at 75 % load | 92.9 %correct |
| Efficiency at half load | 92.4 %correct |
Origin and approval
| Country of manufacture | Italycorrect |
|---|
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 Bonfiglioli BX 160MB 4 have?
The Bonfiglioli BX 160MB 4 delivers 11 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.
We do not sell machines. We ask the dealers who carry this model and come back with price and lead time.
Request a quote →
We ask the suppliers and come back with price and lead time.
Request spare parts →
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.
Missing a figure you were looking for? Report it →
Know this machine better? Have a photo, a manual, or know that a figure is wrong? Add it to the register →
Other models in this series
Sources: Energy Rating — Australian government equipment register (retrieved August 2026) · How we check the data
Electric motor in 3D section
Turn the model, look inside and click an assembly — each one is explained.
