VEM B21R 80 K 4 TEM 400AC

VEM 0.55kW Three-Phase Asynchronous Motor

Description

This is a high-quality three-phase asynchronous motor from VEM, model B21R 80 K 4 TEM 400AC. Manufactured in Germany, it offers reliable performance with a power rating of 0.55 kW and a speed of 1400 RPM. Its robust construction with an IP55 protection rating makes it suitable for various industrial environments, protecting it against dust and water ingress. This foot-mounted (IM B3) motor is an excellent component for powering pumps, conveyors, fans, and other machinery. Order now from spareparts2day for expert support and fast delivery.

Specifications

• Power: 0.55 kW
• Voltage: 400V (Y-connection)
• Speed: 1400 RPM
• Frequency: 50 Hz
• Current: 1.6 A
• Phases: 3
• Frame Size: 80
• Mounting: IM B3 (Foot mounted)
• Protection Class: IP55
• Duty Cycle: S4 40%

Label Info

• Manufacturer: VEM motors Thurm GmbH
• Model: B21R 80 K 4 TEM 400AC
• Serial Number: 1080197005211H
• Weight: 11.8 kg

Application

Ideal for general-purpose industrial applications including but not limited to driving pumps, fans, blowers, conveyor systems, and machine tools requiring a reliable and efficient power source.

Country of Origin

Made in Germany.

CO2 Impact

By purchasing this pre-owned motor, you help avoid the emission of approximately 23.6 kg of CO2, which is equivalent to driving a car for 118 km.

Availability

This item is in stock and ready for immediate dispatch.

FAQ

Can this motor be operated with a variable frequency drive (VFD)?

Yes, this standard asynchronous motor is generally suitable for VFD operation. However, for continuous operation at very low speeds, additional forced cooling might be necessary to prevent overheating. Always ensure the VFD is correctly parameterized for the motor’s specifications (0.55kW, 400V, 1.6A).

What does the S4 40% duty cycle rating mean?

S4 duty cycle refers to intermittent periodic duty with starting. The ‘40%’ indicates the cyclic duration factor, meaning the motor is designed to operate for 40% of each cycle, with the rest of the time being at rest. The value of 240 c/h means it’s rated for 240 start/stop cycles per hour under these conditions. This is typical for applications with frequent starting and stopping.

What is the significance of the IM B3 mounting type?

IM B3 is a standard IEC mounting designation for a foot-mounted motor. This means the motor is designed to be installed on a horizontal baseplate, secured by bolts through the feet that are cast as part of the motor frame. It is one of the most common mounting types for general-purpose motors.

Last Update: Friday, March 13, 2026

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