Medium-voltage drive for large synchronous and asynchronous motors
The Schneider Electric ATV1200A44706060 is a medium-voltage variable speed drive from the Altivar 1200 family, rated for 3737 kW motor power with 4470 kVA apparent power. It drives both synchronous and asynchronous motors, making it suitable for large pumps, compressors, conveyors, and fans in heavy industrial settings. The 30-pulse diode rectifier bridge input stage draws 490 A line current at supply voltage limits of 2970 to 3630 V, delivering a clean input waveform that meets EN/IEC 61800-3 EMC requirements without external filtering — the integrated EMC filter is standard.
Physical footprint and installation constraints
This drive ships as a floor-standing enclosure with separate air flows for power and control sections. Standard efficiency dimensions are 1700 mm deep, 6070 mm wide, 2740 mm high; the high-efficiency variant adds depth to 1800 mm, width to 6370 mm, and height to 3040 mm — verify floor space and overhead clearance before positioning. Operating position is vertical within ±10 degrees. Forced convection cooling moves 46500 m³/h of air through the cabinet; the noise level at full cooling is 80 dB — ear protection zones apply near the drive. Power connections use M10 bar-type terminals accepting 6 x 40 mm² cable per phase, entry from top or bottom. The phase-shifting transformer and 15 power cells are integrated inside the enclosure, along with medium-voltage arrestors and cooling fans.
Overload capability and motor protection
Overload withstand is configurable: standard overload handles 1.2× rated current for 60 seconds and 1.5× for 3 seconds; high overload mode handles 1.5× for 60 seconds and 1.85× for 3 seconds. This allows matching the drive to either constant-torque or variable-torque load profiles. Ground fault protection is built into the drive. Dielectric strength between earth and power terminals is 20 kV AC, with electrical isolation between power and control circuits. Pollution degree 2 per EN/IEC 61800-5-1 applies. Speed range is 20 to 100% of base speed. For operation above 1000 m altitude, derate current by 0.6% per 100 m up to 2000 m.
Control I/O and auxiliary supplies
The drive includes 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 with the optional module. External control supply is 220 V AC at 3 kVA, with an optional 220 V AC/DC supply. The cooling fan runs on a separate 380 V AC supply — this keeps the control electronics powered independently from the fan circuit for safe commissioning and diagnostics.
Active production and sourcing posture
CE marking is applied. Standards compliance includes EN/IEC 60204-11, EN/IEC 60529, EN/IEC 61800-3, EN/IEC 61800-4, and EN/IEC 61800-5-1. Overvoltage category II per the drive standard.