HVAC drive with integrated disconnect
The ABB 3AUD0000000086 is an HVAC drive with a built-in disconnect switch, part of the ACH580-PDR series. It is UL rated for light-overload use at 250 Hp with a corresponding output current of 302 A, making it suitable for driving large fan, pump, and compressor loads in commercial and industrial HVAC systems. The drive accepts a 3-phase input voltage of 380 to 480 V and operates at 50/60 Hz, covering the standard global mains frequencies. The NEMA 3R enclosure means it is rated for outdoor installation — rain-tight and sleet-resistant — so it can be mounted on a roof or exterior wall without a separate weather shelter.
The 302 A output current at light-overload (UL) is the figure that governs motor sizing: it tells you the drive can deliver full rated current continuously for a variable-torque load like a centrifugal fan or pump. The 250 Hp rating is the corresponding motor horsepower at 480 V. If your load is constant-torque (conveyor, positive-displacement pump), you would need to consult the heavy-overload current rating — not listed here — which is typically lower. The NEMA 3R enclosure eliminates the need for a separate disconnect and enclosure on outdoor installations. The integrated disconnect saves panel space and wiring labor, but verify that the disconnect's interrupting rating coordinates with your upstream overcurrent protection.