Compact drives

These drive systems designed to provide high power density with minimal space requirements. This type of drive is often used in applications where available space is limited and efficiency and performance are critical.


Compact drives are characterized by high power density, which means that they offer a lot of power in a small space. Due to their compact design, they are usually lighter than conventional drives, which makes them particularly attractive in applications with weight restrictions. Despite their small size, these drives have efficient cooling systems that prevent overheating and therefore ensure reliable operation.

Another feature of compact drives is the integrated electronics: The control electronics and sensors are often integrated directly into the drive system, which simplifies installation and operation. Their robust construction also makes them ideal for harsh environments; they are resistant to vibrations and temperature fluctuations, which increases their service life and reliability.

Overall, compact drives offer a powerful, lightweight and robust solution for a variety of industrial applications.


Compact drives are ideal for robotics applications due to their size and efficiency. In medical technology, they are often used in medical devices where space and precision are of critical importance. In the automotive industry, compact drives find application in electric vehicles and other automotive components where available space is limited. Their small size and low weight make them particularly valuable in the aerospace sector, where space and weight are crucial. In industrial automation, compact drives are used in machines and production systems that require high precision and a compact design.


The compact unit consisting of motor and inverter offers significant advantages over separately constructed units. One of the most important advantages is that there are no costs for drive planning. Since the inverter is mounted directly on the motor, there is no need for mounting surfaces for the inverter, which saves space and costs.

The design of these units ensures high vibration resistance and a high degree of protection as standard, resulting in a longer service life. Another technical advantage is that, due to the principle, no output filters are required.

Since no motor cables are required, only unshielded power cables are required, which simplifies cabling. The assembly and installation effort is thereby reduced to a minimum. The commissioning effort is also minimal, so that the unit is ready for operation after a short time.

Overall, these compact units offer an efficient, cost-saving and long-lasting solution for various applications.

Features VEMoDRIVE

VEMoDRIVE Compact can be supplied with the same options that are also available for the motor and inverter components. For the inverter, these are primarily external control units, interfaces (e.g. bus interfaces), but also input and output as well as control modules. The engine includes, among other things: Design, protection class, external fan can be selected, but brakes and encoders can also be installed as options. The control of the brake and the evaluation of the encoder signals in the converter are possible on request.

VEMoDRIVE Compact with motors of efficiency class IE1*

  • MT21R, M21R, self-ventilation
  • MT21F, M21F, forced ventilation

VEMoDRIVE Compact with motors of efficiency class IE2*

  • ME1R, self-ventilation
  • ME1F, forced ventilation

*Motors correspond to IE1 or IE2 on the network

Technical details


Compact drive systems for general applications


71 – 180 (200 in preparation)

Performance range

0.55 – 22 kW (30 kW in preparation)

Efficiency classes according to IEC 60034-30

As standard, the motors of the VEMoDRIVE Compact comply with the requirements of efficiency class IE2 (optionally IE3) when operating on the mains.
VEMoDRIVE Compact drive systems can also still be optionally supplied with motors without efficiency class or with efficiency class IE1.


3,000, 1,500, 1,000 min⁻¹

Protection types

IP 54 or IP55, optionally IP 56, IP 66 (depending on the type of inverter), according to EN 60034-5 (IEC 60034-5)


IM B3, IM B35, IM B5, IM B14, IM B34 and derived designs according to EN 60034-7

Types of cooling

according to EN 60034-6 (IEC 60034-6): self-ventilated, IC 411, forced-ventilated, IC 416

Coolant temperature/installation altitude

standard 0 °C to +40 °C, installation altitude 1000 m above sea level

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Productinformations VEMoDRIVE

EU-Konformitätserklärung für asynchrone Drehstrom-Motoren/-Generatoren mit Käfigläufer oder Schleifringläufer

EU declaration of conformity for asynchronous three-phase motors/generators with squirrel cage or slip ring rotors

EU declaration of conformity

EU-Konformitätserklärung für asynchrone Drehstrom-Motoren/-Generatoren mit Käfigläufer oder Schleifringläufer

EU declaration of conformity for asynchronous three-phase motors/generators with squirrel cage or slip ring rotors

Safety instructions

Sicherheitshinweise für elektrische Betriebsmittel in Niederspannungsstarkstromanlagen (2014/35/EU)

Safety instructions for electrical equipment in low-voltage power systems (2014/35/EU)

Assembly, operating and maintenance instructions

Zusätzliche Bedienungsanleitung Permanenterregte Synchronmotoren

Additional operating instructions permanent magnet synchronous motors


Zusätzliche Bedienungsanleitungen

Zusätzliche Bedienungsanleitung M21R

Additional operating instructions M21R


Zusätzliche Bedienungsanleitung M21RT

Additional operating instructions M21RT