What this ACH580-01 drive brings to an HVAC line
The ABB 3AXD50001109660 is a wall-mounted ACH580-01 variable-frequency drive built for HVAC duty — IEC-rated 4 kW / 16.9 A normal use at 230 V, with a UL light-overload rating of 5 Hp / 17 A at 240 V. It ships as a complete control unit (Includes: Control unit), so no separate panel-mount kit is needed for the BACnet-connected jobs it's specced into. The IP66 / NEMA 4X enclosure means this drive can sit directly on the wall next to a rooftop AHU or a chiller — no secondary cabinet required for weather or washdown. Ambient limit is 40 °C; if the equipment room runs hotter, you'll need to derate the output current or add ventilation.
Load ratings — normal, heavy, and light-overload curves
Three duty curves are listed: normal-use (Pn) 4 kW / 16.9 A, heavy-duty (PhD) 3 kW / 10.6 A, and light-overload (PlD) 4 kW / 16.7 A. The heavy-duty figure governs continuous fan or pump loads with a constant-torque profile; the light-overload number is the one you'd size to for a variable-torque centrifugal load. The UL column confirms 5 Hp / 17 A light-overload, which is the rating most North American specs will reference. Apparent power output is 7.2 kV·A, and the power factor sits at 0.98 — that's the drive-side input PF, not the motor; it tells you the rectifier stage draws near-sinusoidal current, which keeps the upstream transformer and cabling sized closer to real power than apparent.
I/O and fieldbus — what's on board
Two analog inputs and two analog outputs are standard, plus 6 digital inputs and 3 digital outputs — enough for a basic pressure or temperature PID loop with a remote setpoint and a run-status relay back to the BAS. The communication protocol is BACnet (MS/TP or IP — the listing doesn't specify the physical layer, but the ACH580 family typically offers both on the same port). No Industrial Ethernet interface is listed; if you need PROFINET or EtherNet/IP, you'd add an optional fieldbus adapter module. A CR2032 lithium coin cell (220 mAh, 3 V) backs the real-time clock and parameter storage — standard across the ACH580 line. It's field-replaceable, so the drive doesn't lose its configuration when powered down for a panel swap.
This is the current-production ACH580-01 variant for the 4 kW / 230 V segment.