What the panel builder is budgeting for
The ABB ACS380-040S-09A4-4 is a module-format variable-frequency drive in the ACS380 series, frame size R1, sized at 70 mm wide, 223 mm tall, and 176 mm deep, which is the cabinet slot the wireman has to leave open in the section. It is an open-type module for cabinet building rather than a wall-mount or motor-mounted unit, so the enclosure around it carries the IP rating, not the drive itself. The drive ships at 2.5 Kg per unit in its crate, and the bare unit is 1.40 kg / 3.086 lb. That is the figure to give the receiving bay for lifting and racking, not a selection parameter.
Line side and what it pulls
Input is three-phase 380 to 480 V at 47.5 to 63 Hz. Power factor is 0.98, so the upstream filter and breaker run close to the apparent-power number rather than building in large reactive headroom. Apparent power output is 6.5 kV·A on this rating, which is the figure the upstream transformer feeder and the SCCR study have to absorb for the cabinet this drive lives in. Ambient ceiling is 50 °C, and the altitude rating is 1000 m at 5 to 95. The panel layout has to keep the drive away from the cabinet's hot spots if the room runs warm. Acoustic floor is 63.10 dB(A), which is meaningful on a line where the cabinet sits inside a control room rather than on the machine floor — there is no quiet-mode option hiding in the rating.
Fieldbus slice and local I/O
The drive carries MODBUS as the listed bus, with the other-bus option flagged for the slot. On board it has 2 analog inputs, 1 analog output, 5 digital inputs, and 2 digital outputs, so a small sensor package (one speed reference, one process feedback) and a handful of interlocks land natively without an expansion card. The package includes the control unit and a PC connection for commissioning, which is the path the startup engineer uses to load parameters and pull a fault log if the panel goes dark on first energizing. No battery or cell is included, so the real-time clock and any parameter retention ride on the control-unit memory alone — a loss-of-supply event is the only thing that threatens the parameter set, not a coin cell that has gone dead.
Second-source gate against the ACS310 line
Against the ACS310-03E-06A2-4 in the same R1-class / IP20 / MODBUS envelope, the two drives share a 70 mm cabinet width and the same 5-digital-input footprint, but the ACS310 lists 1 digital output and 1 relay output where the ACS380-040S-09A4-4 lands 2 digital outputs with no relay counted. The ACS310 ambient floor is rated to -10 °C, which the ACS380 spec on file does not extend down to on this row. A panel that was specified around the ACS310 will drop the ACS380-040S-09A4-4 into the same slot, but the I/O count change is the line the controls integrator has to walk before sign-off, and a site that depends on the -10 °C floor needs that confirmed against the ACS380 derating curve, not assumed.