The ABB 3AUD0000003572 is an ACH580 HVAC enclosed ultra-low harmonic drive in an R8 frame, rated for 124 A light-overload output current (100 Hp at 460 V per UL). It's a 3-phase unit accepting 440–480 V input at 50/60 Hz, with IP21 protection and a NEMA Type 1 enclosure that includes a non-fused disconnect switch. The ultra-low harmonic design keeps total harmonic distortion (THD) below 5% at the input, which avoids oversizing upstream transformers or adding separate line reactors in most commercial buildings.
Enclosure and integration notes
The NEMA Type 1 enclosure with IP21 protection is suited for indoor installation in a mechanical room or electrical closet where drips and falling dirt are the main concern — not washdown or outdoor exposure. The R8 frame includes the non-fused disconnect as a single assembly, which simplifies panel layout by eliminating a separate disconnect enclosure upstream. Mounting footprint and gland-plate dimensions follow the standard ACH580 R8 pattern; verify clearance for the disconnect handle swing before finalizing the enclosure layout. The drive ships with the built-in EMC filter for the 440–480 V range, so no external filter is needed for most commercial installations.