Amtecs 4kW 2 Pole Motor – 5.5HP 3000rpm IEC 112MB35 Foot & Flange Motor

This Amtecs 4kW 2 pole three-phase electric motor is built in IEC 112MB35 format with B35 mounting, making it suitable for fans, blowers, saws, polishing equipment, spindles, and other direct-drive machinery needing higher running speed. This version is aimed at users who need foot & flange motor, dependable IE3 efficiency, and IP55 protection for day-to-day industrial service.

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Motor Overview

This version uses a B35 mounting arrangement for combined foot and flange mounting flexibility. In practice, that makes it a practical choice for industrial transmissions, pumps, and coupled equipment where both foot support and flange location are preferred. The 2 pole winding gives a nominal speed of 3000rpm, so it is normally selected where higher shaft speed and quicker response are important.

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Why Choose This Configuration?

This exact model is best suited to buyers who specifically need an IEC 112MB35 motor in 4kW / 5.5HP. Compared with other mounting options in the same power and pole range, this version is intended for applications where a combined foot and full-flange IEC motor is needed for rigid installation, while still keeping the same core electrical performance and aluminium IE3 construction.

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Technical Details

Rated power: 4kW
Pole count: 2 pole
Nominal speed: 3000
IEC mounting code: 112MB35
Mounting type: Foot & Flange Motor
Shaft / flange detail: Foot & Flange 28mm Shaft x 250mm Flange
Voltage: 660-725 / 380-420 V Y/Δ 50Hz
Protection: IP55 TEFC
Efficiency: IE3
Construction: Aluminium frame, continuous-duty industrial motor

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Internal Links & Compatible Options

Same motor power, different mounting options: jump to the Amtecs 4kW 2 Pole Motor mounting style you need.

Need a different motor power? Explore the closest motor sizes around 4kW.

More Amtecs motors: Browse all 4kW motors Browse all AMTECS electric motors

Helpful calculators:
Gearbox Ratio & Speed Calculator |
Output Torque Calculator

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Frequently Asked Questions

What speed does a 2 pole motor run at?

A 2 pole electric motor operating on a 50Hz supply typically runs at around 3000rpm, with the actual full-load speed usually around 2800–2900rpm due to motor slip.

What is this 4kW motor commonly used for?

This motor is commonly used on conveyors, pumps, fans, mixers, machine tools, gearboxes, and general industrial machinery where higher running speed, reliable continuous-duty operation, and IEC interchangeability are important.

Why would I choose a B35 motor?

A B35 foot and flange motor is commonly chosen where the motor needs both a secure base-mounted position and a full flange interface to the driven equipment.

What should I check before replacing a 4kW motor?

When replacing a 4kW motor, check the frame size, pole count, B35 mounting arrangement, shaft dimensions, supply voltage, and the mechanical fit to the existing machine before ordering.

Can this motor run on an inverter drive?

Many industrial AC motors can operate with inverter drives (VFDs), but suitability depends on the exact application, duty cycle, cable length, and motor specification.

What does B35 mounting mean?

B35 combines foot mounting with a B5 flange, making it a practical choice where both base fixing and a full flange connection are required.