The 6SE6440-2UD21-5AA1 Siemens converter for single-axis drives is a MICROMASTER 440 series frequency inverter designed for 1.5 kW applications, operating on three-phase 380-480V power supply with a frequency range of 47-63 Hz. This compact drive features a slim Frame Size A design measuring 173 x 73 x 149 mm (H x W x D) with IP20 protection, making it suitable for space-constrained installations. It offers both constant torque and squared torque operation modes, providing flexibility for various motor control applications while supporting an impressive speed control range from 0 Hz to 650 Hz.

This versatile drive delivers robust performance with overload capacity of 150% for 60 seconds and 200% for 3 seconds, ensuring reliable operation under demanding conditions. The robust and efficient variable frequency drive 6SE6440-2UD21-5AA1 Siemens is equipped with comprehensive I/O capabilities including two analog inputs, six digital inputs, two analog outputs, and three relay outputs, enabling seamless integration into automation systems. With an input current rating of 5.9A and operating temperature range from -10°C to +50°C, it maintains stable performance across varying environmental conditions.

The 6SE6440-2UD21-5AA1 Siemens Frequency Converters supports dynamic braking functionality with the capability to connect an external braking resistor (minimum 500 ohm), though the resistor is not included with the base unit. Installation requires proper ventilation with 100mm clearance above and below the drive, while side-by-side mounting is possible without additional spacing. The drive can be mounted using either symmetrical DIN rail or two M4 bolts, offering flexibility in panel design. It's important to note that it does not include an operator panel or EMC filter, which must be sourced separately for complete functionality.

Designed for precise motor control, the Variable Speed 6SE6440-2UD21-5AA1 Siemens accommodates both V/f control and vector control modes, providing accurate speed regulation for standard AC induction motors. The drive's compact dimensions and comprehensive feature set make the Siemens 6SE6440-2UD21-5AA1 an ideal solution for various industrial applications requiring reliable frequency conversion and motor control capabilities in a space-efficient package.