Medium-voltage drive for heavy motor loads
The ATV1200A11403333 is an Altivar 1200 medium-voltage variable speed drive rated at 1200 kVA apparent power, driving motors up to 953 kW. It handles both synchronous and asynchronous motors, making it a fit for large pumps, compressors, conveyors, and fans in process industries. The 18-pulse diode rectifier bridge input reduces line harmonics below IEEE 519 thresholds without external filters — a key advantage for installations where power quality compliance is a requirement, not an option.
Supply and overload ratings that define the application envelope
Supply voltage limits are 2970...3630 V, placing this squarely in the medium-voltage class (typically 3.3 kV nominal). Line current is 200 A, and prospective line short-circuit current withstand is 31.5 kA for 150 ms — the drive handles fault energy without upstream cascading. Overload capability is specified in two duty classes: standard overload at 1.2 In for 60 s and 1.5 In for 3 s; high overload at 1.5 In for 60 s and 1.85 In for 3 s. The high-overload curve suits applications with heavy starting torque or short-duration peak loads, such as crushers or extruders. Dielectric strength is 10 kV AC between earth and power terminals, with electrical isolation between power and control circuits. Overvoltage category II per EN/IEC 61800-5-1 applies to the power section.
Physical footprint and installation constraints
The drive ships in a floor-standing enclosure with separate air flows for power and control sections. Standard-efficiency configuration measures 1400 mm deep by 3560 mm wide by 2670 mm high; high-efficiency adds depth to 1600 mm and width to 3860 mm at the same height. Cooling is forced convection: standard efficiency moves 16500 m³/h of air, high efficiency 19800 m³/h. The noise level is 80 dB — ear protection zones are likely required near the enclosure. Operating position is vertical within ±10 degrees. Electrical connections use M10 screw-type bar terminals accepting up to 6 x 40 mm² cable per phase, with entry from bottom or top. The enclosure is grey (RAL 7032).
Standards compliance and control interfaces
CE marked, with compliance to EN/IEC 60204-11 (safety of machinery), EN/IEC 60529 (enclosure protection), EN/IEC 61800-3 (EMC for drives), EN/IEC 61800-4 (drive ratings), and EN/IEC 61800-5-1 (electrical safety). Pollution degree 2 per the safety standard applies. Control I/O includes 4 software-configurable analogue inputs (0...20 mA / 4...20 mA, 250 Ohm impedance), 2 analogue outputs of the same type, and 6 discrete inputs (expandable to 10). An integrated EMC filter is standard. Operating altitude is 1000...2000 m with 0.6 % current derating per 100 m above 1000 m. Relative humidity range is 0...90 % standard, 0...95 % optional.