The Siemens 6SE6440-2UD22-2BA1 is a MICROMASTER 440 variable frequency drive designed for reliable control of three-phase AC motors in demanding industrial applications. Built for both constant torque and squared torque loads, this drive is well-suited for conveyors, compressors, pumps, fans, and general machine automation where consistent performance and overload capability are critical.

Rated for 2.2 kW motor power, the drive operates on a 380–480 VAC three-phase supply at 47–63 Hz and delivers strong overload performance, supporting up to 150% overload for 60 seconds and 200% for short-duration peak demands. Its IP20 enclosure is intended for installation inside control cabinets, and it is engineered to operate in ambient temperatures from −10°C to +50°C without derating.

This model is supplied without an operator panel or integrated input filter, making it ideal for systems where control is handled externally or where custom panel configurations are preferred. The MICROMASTER 440 series is widely recognized for its robustness, flexibility, and long service life in industrial environments.

As a legacy Siemens drive, the 6SE6440-2UD22-2BA1 is commonly used as a direct replacement in existing installations where maintaining compatibility and minimizing downtime are essential.

What type of drive is this Siemens unit?
This is a Siemens MICROMASTER series AC variable frequency drive designed for general purpose motor control.

What applications is this drive commonly used for?
It is typically used for pumps, fans, conveyors, and other standard industrial motor applications.

What input power does this drive require?
This model is designed for standard industrial AC power input, depending on the specific voltage rating.

Does this drive include built in motor protection?
Yes, it includes protection features such as overcurrent and thermal monitoring.

Is this drive considered legacy equipment?
Yes, the MICROMASTER series is considered legacy, making replacements important for maintaining existing systems.