The Schneider Electric ATV1200A14806363 is a medium-voltage AC drive from the Altivar 1200 series, designed for large synchronous and asynchronous motors up to 995 kW with an apparent power rating of 1190 kVA. This is not a panel-mount VFD — it ships as a complete floor-standing enclosure with separate air flows for the power section and control electronics, measuring 2670 mm high by 3960 mm wide (standard efficiency) or 4260 mm wide (high efficiency variant). The 36-pulse diode rectifier input stage running on a 2970-3630 V supply means this drive inherently mitigates line harmonics to meet IEEE 519 without an external active filter — a real advantage for sites with weak utility connections or strict power-quality requirements.
Overload capability and duty cycle
Standard overload rating allows 1.2 times the nominal current for 60 seconds and 1.5 times for 3 seconds; the high-overload profile extends to 1.5 times for 60 seconds and 1.85 times for 3 seconds. For a 995 kW motor driving a high-inertia load like a centrifuge or large fan, that 1.5x for 60 seconds gives you the headroom to accelerate through the breakaway torque peak without tripping on overcurrent.
Construction and internal architecture
The drive comprises 18 power cells, a phase-shifting transformer, medium-voltage arrestors, cooling fans, and a human-machine interface — all integrated into the floor-standing cabinet with forced-convection cooling moving 16500-19800 m³/h of air depending on the efficiency variant. Electrical connection uses M10 screw-type bars accepting up to 6 x 40 mm² cable per phase, with entry from the top or bottom of the enclosure. The 80 dB noise level means this unit needs a separate electrical room or acoustic enclosure in occupied areas — not something you tuck into a corner of the production floor.
CE marked and compliant with EN/IEC 61800-3 (EMC), EN/IEC 61800-4, EN/IEC 61800-5-1 (safety), EN/IEC 60204-11, and EN/IEC 60529. Pollution degree 2 per EN/IEC 61800-5-1, overvoltage category II, with dielectric strength of 20 kV AC between earth and power terminals. Operating altitude range is 1000-2000 m with a 0.6 % current derating per 100 m above 1000 m — factor this into the installation if your site is at elevation.