Medium-voltage drive for large asynchronous and synchronous motors
The Schneider Electric ATV1200A44603333 is an Altivar 1200 series medium-voltage AC drive rated for 3729 kW motor power with 4460 kVA apparent power, intended for asynchronous and synchronous motor control. Its 18-pulse diode rectifier bridge input stage draws 850 A line current from a 2970...3630 V supply, delivering output voltage up to the supply level — a topology that reduces line-side harmonics without an external filter.
Overload profile and short-circuit coordination
The drive supports standard overload at 1.2× In for 60 s and 1.5× In for 3 s; a high-overload configuration allows 1.5× In for 60 s and 1.85× In for 3 s. This dual profile lets the same frame serve constant-torque and variable-torque applications without oversizing. Prospective line short-circuit current withstand is 31.5 kA for 150 ms, per the specification. Ground-fault protection is integral to the drive.
Physical footprint and enclosure integration
The drive ships in a floor-standing enclosure with separate air flows for power and control sections. Standard-efficiency dimensions are 2740 mm high × 5870 mm wide × 1700 mm deep. Forced-convection cooling moves 60,000 m³/h of air; noise level is 80 dB. The enclosure colour is grey RAL 7032.
Compliance and certification for tender documentation
CE marked. Standards compliance includes EN/IEC 60204-11, EN/IEC 60529, EN/IEC 61800-3 (EMC), EN/IEC 61800-4, and EN/IEC 61800-5-1. Pollution degree 2 per EN/IEC 61800-5-1; overvoltage category II. Dielectric strength is 10 kV AC between earth and power terminals. Electrical isolation is maintained between power and control circuits.
Environmental limits and installation conditions
Operating altitude range is 1000...2000 m with current derating of 0.6 % per 100 m above 1000 m. Relative humidity range is 0...90 % (0...95 % optional). Operating position is vertical ±10°. Vibration resistance is 4.9 m/s² over 10...50 Hz. The main power connection uses M10 screw-type bars accepting up to 6 × 40 mm² cable per phase, entry from bottom or top.
Control I/O complement
The drive provides 4 software-configurable analogue inputs (0...20 mA / 4...20 mA, 24 V max, 250 Ω impedance) and 1 analogue output of the same type. Discrete inputs number 6 standard, expandable to 10. Control supply is 220 V AC, 3 kVA external; an optional 220 V AC/DC supply is available. The internal cooling fan requires 380 V AC.