The ABB 3AXD50000039001 is an LV AC wall-mounted drive for HVAC applications, rated 2.2 kW normal use at 5.6 A on a 380-480 V three-phase supply. IP55 and NEMA Type12 enclosure suits it for washdown or dusty mechanical rooms without a separate cabinet. BACnet on board means it talks directly to the building management system — no gateway needed for the BMS trend logs.
This drive carries three duty curves. Normal use (Pn) delivers 2.2 kW / 5.6 A — that is the continuous rating for a typical fan or pump with a quadratic torque profile. Heavy-duty use (PhD) drops to 1.5 kW / 4.0 A, sized for constant-torque loads like a positive-displacement pump or a conveyor running at low speed. Light-overload use (PlD) matches the normal-use power at 2.2 kW but limits current to 5.3 A, which reflects the slightly lower thermal capacity of a light-overload cycle. Under UL listing, the light-overload output is 3 Hp at 4.8 A, and heavy-duty UL current is 3.4 A — the same derating logic, just in horsepower units.
I/O and fieldbus for the controls engineer
The drive carries 2 analog inputs and 2 analog outputs — enough for a pressure transducer feedback and a speed reference, plus a retransmitted signal to the BMS. Digital I/O counts 6 inputs and 3 outputs; that covers start/stop, fault reset, and a run-permissive relay. No industrial Ethernet port on this variant — the hardware interface count is zero for Ethernet, so BACnet rides on the RS-485 serial link. If your plant standard is PROFINET or EtherNet/IP, you will need the optional fieldbus adapter module. The frame size R1 and wall-mount format keep the footprint compact; standby loss is 14 W, so the panel ventilation budget stays modest.