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ACS250-01U-04A3-1 ABB VFD 1hp 4.3Amp 120V 1Ph

ABB single phase input variable frequency drive ACS255-01U-04A3-1 is a versatile tool for industrial machinery and equipment. Replaces ACS250-01U-04A3-1.

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    ABB ACS250-01U-04A3-1 single phase drives with a 110 – 120 volt input are small in size, but come with big-drive features, including a built-in Modbus RTU serial communication for simple integration with monitoring systems.

    New features include: sensorless vector control for both AC induction and PM motors, enhanced short circuit protection, and operating mode selection. New ratings have been added to fill out the product line. All of the existing features of the ACS250 - parameters, external dimensions, mounting locations, etc. - are the same for the ACS250. An Advanced parameter menu has been added for additional functionality

    Ideal for new and replacement installations in a wide range of applications, including woodworking, conveyors, machinery, food & beverage, plastics, and printing. Use on pumps, fans, grinders, mixers, augers, and more. In addition, these micro drives feature:


    • 110-20 volt single phase input and 230 volt three phase output
    • V/Hz control, linear or user defined with energy optimizer or boost function
    • Built-in braking chopper (frames 2 & 3)
    • Built-in Modbus RTU
    • V/Hz or open loop vector speed or torque control mode
    • Built-in safe torque off (STO)
    • Integrated control panel with LCD screen
    • 150% overload for 1 minute
    • IP20 Enclosure
    • Feed-thru wiring


    Be sure to follow safety measures when working with a variable speed drive and motor; be sure that power is disconnected and all capacitors are discharged.