75 kW at 480 V — what the rating means on the line
The ATV212HD75N4 is a 75 kW variable speed drive from the Altivar 212 family, designed for 3-phase 480 V supply. At 380 V it draws 141.8 A; at 480 V the line current drops to 111.3 A — the 75 kW rating holds across the 380–480 V window, but the input current changes with voltage, so the upstream protection and cable sizing follow the 380 V figure for worst-case thermal margin. The drive carries an integrated Class C2 EMC filter, which means it meets conducted and radiated emission limits for industrial environments (first environment, restricted distribution per IEC 61800-3). No external filter needed for most industrial panels — saves a DIN-rail slot and a wiring step.
Protection set and fault tolerance
This drive covers the common failure modes without external add-ons: short-circuit between motor phases, earth faults on the output, DC bus overvoltage, input phase loss, and motor thermal protection via PTC probes. The overheating protection on the power stage means the drive throttles itself before the IGBTs let go — useful on a pump or fan load that runs near the thermal ceiling for hours. The adjustable PI regulator in the regulation loop lets it close the loop on process feedback (pressure, flow, level) without a separate controller — the drive handles the PID directly.
Lifecycle and sourcing posture
Sourced to order against the BOM quantity through independent industrial distribution.