Medium-voltage drive for large motor loads
The ATV1200A11904242 is a medium-voltage AC drive from the Altivar 1200 series, rated for 995 kW motor power with 1190 kVA apparent power. It accepts a 2970...3630 V supply via a 24-pulse diode rectifier bridge, which inherently cancels the 5th and 7th harmonics — a practical advantage for plants with strict IEEE 519 compliance targets or weak utility connections. The drive supports both synchronous and asynchronous motors, with overload capability of 1.2 In for 60 s (standard) or 1.5 In for 60 s (high overload). This matters for applications like large conveyors or mills that need breakaway torque without oversizing the drive frame.
Physical footprint and site preparation
This is a floor-standing enclosure, not a panel-mount unit. Standard-efficiency configuration measures 4060 mm wide × 1400 mm deep × 2670 mm high; the high-efficiency variant adds width to 4360 mm and depth to 1600 mm. Site planning must account for the 16500 m³/h (standard) or 19900 m³/h (high-efficiency) cooling airflow — forced convection with separate air paths for power and control sections. The enclosure colour is grey (RAL 7032). Electrical connection uses M10 screw-type bars accepting up to 6 × 40 mm² per phase, entry from top or bottom. Operating position is vertical within ±10 degrees.
Power architecture and cell topology
The ATV1200A11904242 uses a multi-cell topology: 12 power cells fed by a phase-shifting transformer with two plinths. Each cell is a modular inverter stage; the 24-pulse input rectifier keeps line current distortion low without external filters. The integrated EMC filter meets EN/IEC 61800-3 conducted emissions limits for the intended industrial environment. Prospective short-circuit current withstand is 31.5 kA for 150 ms — sufficient for most industrial distribution systems when properly coordinated upstream.
Control interfaces and I/O complement
The drive carries 4 software-configurable analogue inputs (0...20 mA / 4...20 mA, 24 V max, 250 Ohm impedance) and 2 analogue outputs of the same type. Discrete inputs number 6 standard, expandable to 10. The human-machine interface is included as standard equipment. Control supply requires 220 V AC at 3 kVA (external), with an optional 220 V AC/DC supply. The cooling fan runs on 380 V AC internal supply, also available as an external option. Electrical isolation between power and control circuits is standard.
Environmental limits and derating
Operating altitude range is 1000...2000 m with current derating of 0.6 % per 100 m above 1000 m. Relative humidity tolerance is 0...90 % standard, 0...95 % optional. Vibration resistance is 4.9 m/s² over 10...50 Hz. Noise level at full load is 80 dB — factor this into enclosure room acoustic planning. Speed range is 20:1 to 100:1, adequate for centrifugal loads (pumps, fans) and constant-torque applications (conveyors, extruders) within the motor's thermal capability at low speed.
Lifecycle status and sourcing
CE marking is standard. 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 (safety). Ground fault protection is integrated at the drive level.