4682 kW medium-voltage drive for large asynchronous motors
The ATV1200A56006666 is a Schneider Electric Altivar 1200 medium-voltage variable speed drive rated for 4682 kW motor output. It accepts a 2970-3630 V supply via a 36-pulse diode rectifier bridge, which significantly reduces line harmonics compared to 12- or 18-pulse topologies. It is designed for large asynchronous motors in heavy industrial applications — think pumps, fans, compressors, and conveyors in mining, cement, water, and oil & gas where medium-voltage direct drive is needed.
Overload profile and cooling — what the ratings mean
The drive delivers standard overload of 1.2 In for 60 s and 1.5 In for 3 s; for high-overload duty it handles 1.5 In for 60 s and 1.85 In for 3 s. This means it can handle short-duration peak torque demands typical of crushers or centrifuge starts without tripping. Forced convection cooling moves 80,000 m³/h of air through the floor-standing enclosure, with separate airflows for power and control sections. The noise level is 80 dB — factor in hearing protection if the drive is in a walk-in room.
Physical footprint and installation constraints
The standard-efficiency variant measures 1800 mm deep, 6670 mm wide, and 2820 mm high. The high-efficiency version is wider at 6970 mm and taller at 3040 mm. Both require vertical installation within ±10° and a floor-standing enclosure with separate air flows. Operating altitude from 1000 to 2000 m requires current derating of 0.6 % per 100 m. Pollution degree 2 per EN/IEC 61800-5-1 applies, meaning only non-conductive pollution occurs — typical for clean indoor industrial environments.