The ABB ACS550-U1-038A-4+B055 is a discontinued three-phase AC drive from the ACS550 series, designed for US installation with NEMA compliance. It operates at 380-480 VAC, 50/60 Hz, delivering 38 A output current and 18.5 KW power. The unit features IP54/UL Type 12 protection and has been replaced by the newer ACS580-01-034A-4+B056 model.
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