The ATV930D11N4US is a 380-480 V 3-phase variable speed drive from the Altivar Process ATV900 series, rated for 11.0 kW normal duty and 7.5 kW heavy duty, with a nominal output current of 23.5 A at 4 kHz for normal duty and 16.5 A at 4 kHz for heavy duty. It comes as a standard version with an integrated braking chopper, making it ready for dynamic braking without an external chopper module on vertical loads or high-inertia stops. The drive is enclosed in an IP21 / UL type 1 wall-mount enclosure, suited for clean indoor environments where drips and falling dirt are the main concern.
The 23.5 A continuous output current at 4 kHz is the headline number for normal-duty motor sizing — match it to a 11 kW 4-pole induction motor on a pump or fan. For constant-torque loads like conveyors or extruders, use the 16.5 A heavy-duty rating, which corresponds to 7.5 kW. The supply voltage range of 380-480 V covers common global industrial mains, and the 3-phase input means it will not run on single-phase — plan for a three-phase feed. The integrated EMC filter meets IEC 61800-3, and total harmonic current distortion (THDI) stays below 48 % from 80-100 % load per IEC 61000-3-12, which simplifies compliance for most installations. The drive includes an adjustable PID regulator for closed-loop process control (pressure, flow, temperature) without an external controller.
Integration notes
Mount vertically within ±10 degrees to maintain airflow; the drive requires 103 m³/h of cooling air and produces 56 dB of noise at full load. Power wiring: line and DC bus terminals accept up to 6 mm² (AWG 10), motor terminals accept 6-10 mm² (AWG 10-8). Control wiring uses screw terminals for 0.5-1.5 mm² (AWG 20-16). Three option slots (A, B, C) accept communication modules (Profibus DP V1, PROFINET, DeviceNet, EtherCAT, CANopen, Ethernet Powerlink), I/O extension, encoder interfaces, or relay outputs — configure before installation. The drive supports Ethernet IP/Modbus TCP with half/full duplex and auto-negotiation at 10/100 Mbits, plus serial at 4.8-19200 bps. Built-in safe torque off (STO) with internal 24 V DC supply (21-27 V) and a 1 MOhm isolation test to earth at 500 V DC for 1 minute.
Environmental limits
Rated for pollution degree 2 and overvoltage category III, with operating altitude up to 4800 m (derate 1 % per 100 m above 1000 m). Withstands 15 gn shock for 11 ms and vibration of 1.5 mm peak-to-peak at 2-13 Hz / 1 gn at 13-200 Hz per IEC 60068-2-6 and 60068-2-27. Operates in 5-95 % relative humidity without condensation per IEC 60068-2-3.