3545 kW medium-voltage drive — what it is
The ATV1200A44706363 is a Schneider Electric Altivar 1200 medium-voltage variable speed drive rated for 3545 kW motor power, with a supply voltage range of 2970 to 3630 V. It uses a 36-pulse diode rectifier bridge input stage, which reduces line current harmonics below IEEE 519 thresholds without an external filter. The drive is assembled in a floor-standing enclosure with separate air flows for power and control sections, and forced convection cooling moves 49,800 m³/h of air through the cabinet.
Electrical ratings and overload capability
Line current is 410 A with an apparent power rating of 4240 kVA, and the drive withstands 1.2× In for 60 seconds under standard overload or 1.5× In for 3 seconds — enough for starting high-inertia loads like large fans or centrifugal pumps. The prospective line short-circuit current rating is 31.5 kA for 150 ms, so the drive coordinates with upstream MV switchgear without requiring additional current-limiting reactors in most installations. Output voltage is limited to the supply voltage level, and the drive supports both synchronous and asynchronous motors — common for retrofit or new-build MV motor control.
Physical footprint and site integration
Operating altitude is 1000 to 2000 m with a 0.6 % current derating per 100 m above 1000 m — factor this into the motor full-load current if the installation is at elevation. The enclosure is grey RAL 7032, the operating position is vertical ±10°, and the vibration resistance is 4.9 m/s² at 10–50 Hz, which suits typical industrial floor conditions.
Standards, approvals, and lifecycle
The drive carries CE marking and complies with EN/IEC 60204-11, EN/IEC 60529, EN/IEC 61800-3 (EMC), EN/IEC 61800-4, and EN/IEC 61800-5-1 — covering electrical safety, EMC, and functional safety for adjustable-speed drives. Electrical isolation between power and control circuits is provided, with a dielectric strength of 20 kV AC between earth and power terminals, and overvoltage category II per EN/IEC 61800-5-1.