The Siemens 6SE6440-2UD21-5AA1 is a versatile 1.5 kW MICROMASTER 440 frequency inverter designed for precise 3-phase motor control. Featuring vector control capabilities and a compact Frame Size A design, this drive provides reliable speed regulation and high overload capacity for demanding industrial automation tasks.
The Siemens 6SE6440-2UD21-5AA1 belongs to the high-performance MICROMASTER 440 family, specifically engineered for sophisticated motor control applications. This 1.5 kW frequency inverter converts a three-phase line supply into a variable frequency output, enabling precise speed and torque regulation for AC induction motors. Because it supports both vector control and V/f characteristics, engineers can deploy this drive in a wide array of industrial scenarios ranging from simple fan applications to complex conveyor systems.
This converter operates within a voltage window of 380V to 480V AC and manages a steady input current of 5.9A. To handle the mechanical stresses of industrial startups, the drive features a robust overload profile, sustaining 150% of rated current for 60 seconds and peaking at 200% for brief 3-second intervals. Furthermore, the unit facilitates high-speed operations by providing an output frequency range that extends from 0 Hz up to 650 Hz.
The compact Frame Size A (FSA) housing prioritizes space efficiency, allowing for side-by-side mounting in control cabinets without requiring lateral clearance. Consequently, this design significantly reduces the overall footprint of the automation panel.
Siemens equips the 6SE6440-2UD21-5AA1 with a comprehensive I/O suite to ensure seamless communication with PLCs and sensors. While the base unit does not include an integrated EMC filter or a Basic Operator Panel (BOP), these components can be added as modular accessories to meet specific local electrical standards or user interface requirements.
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