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6SE6440-2UD31-8DA1 Siemens
Product Details
Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.
Product Overview
The Siemens 6SE6440-2UD31-8DA1 is a variable frequency drive (VFD) from the MICROMASTER 440 series. It controls three-phase motors by converting 380 - 480 V AC input to adjustable output frequency and voltage. The unit supports both low and high overload modes-delivering 18.5 kW (LO) and 22 kW (HO)-and is used for speed and torque control in pumps, conveyors, fans, and general-purpose drives in manufacturing and processing environments. 6SE6440-2UD31-8DA1 integrates into motor control panels and upgrade projects where retrofitting or replacement of MICROMASTER 440 drives is required.
Best Suited For
- Replacement in existing MICROMASTER 440 installations
- Pump, fan, and conveyor motor speed control
- Applications requiring momentary overload capability
- Control panels in OEM machinery