HVAC packaged drive with e-clipse bypass
The ABB 3AUD0000004270 is an HVAC packaged drive combining a variable-frequency drive with an e-clipse bypass and a circuit breaker disconnect in a single NEMA Type3R enclosure. It's built for 3-phase 500... 600 V input at 50/60 Hz, and carries a UL light-overload rating of 60 Hp / 62 A — the number that governs motor sizing for UL-listed installations.
The 62 A light-overload current (UL) is the continuous output the drive can deliver to a 60 Hp motor without tripping on overload — that's your sizing anchor. The 500... 600 V input range covers 480 V and 575 V nominal supplies common in North American industrial and commercial HVAC, but the drive's own minimum is 500 V, so a 480 V line is below the rated floor; verify your actual supply voltage against the 500 V minimum before specifying. NEMA Type3R means the enclosure is rainproof and sleet-resistant — suited for outdoor rooftop or wall-mounted HVAC installations where the drive sees weather but not hose-down. It's not a washdown rating; if the location gets hosed, you need Type4 or 4X.
The NEMA Type3R packaged format includes the bypass and disconnect inside the same enclosure — no separate contactor, overload relay, or disconnect switch to panel-build around. That saves enclosure space and wiring labor on rooftop units or mechanical-room walls. The circuit breaker disconnect serves as both service-disconnect and branch-circuit protection, so the feeder only needs upstream short-circuit protection.