Siemens 6SE6440-2UC27-5DA1 Variable Frequency Drive

Siemens MICROMASTER 440 6SE6440-2UC27-5DA1 is a three-phase variable-frequency drive designed to control a motor from a 200–240 VAC supply with a 28 A output rating, in the unfiltered “without filter” variant (3AC input, 47–63 Hz). It belongs to Siemens' MICROMASTER 440 family and provides precise speed and torque control, including constant-torque operation across the motor's speed range. The unit is IP20 protected, specified for ambient temperatures from -10 to +50 °C, and does not include AOP/BOP options in its base configuration. The drive's enclosure measures approximately 520 × 275 × 245 mm (H × W × D), enabling installation in standard control panels or machine enclosures. With 28 A and a 200–240 VAC input, it is designed to drive mid-range motors at the drive’s nominal power rating, delivering reliable performance for industrial automation tasks that require smooth start-up, speed regulation, and torque shaping from a compact, robust VFD.