1325 kW medium-voltage drive with 24-pulse rectifier
The ATV1200A15854242 is a medium-voltage AC drive rated for 1325 kW motor power and 1585 kVA apparent power, supplied from a 2970-3630 V three-phase line through a 24-pulse diode rectifier bridge. The 24-pulse topology cancels the 5th, 7th, 11th, and 13th harmonics at the input, keeping total harmonic distortion low enough that an external harmonic filter is often unnecessary — a real advantage for brownfield sites with weak utility ties or genset supply. The drive sits in a floor-standing enclosure with separate air flows for the power cells and the phase-shifting transformer, so hot air from the transformer doesn't recirculate through the IGBT cells. The standard-efficiency variant draws 16500 m³/h of cooling air; the high-efficiency variant pulls 19900 m³/h — the difference matters when sizing the room ventilation louver or the roof fan.
Physical footprint and site access
At 2670 mm high, 4060 mm wide (standard efficiency) or 4360 mm wide (high efficiency), and 1600 mm deep (high efficiency) or 1500 mm deep (standard efficiency), this is not a drive you slide into an existing panel — it needs a dedicated electrical room with a concrete pad and overhead lifting provisions. The M10 bar terminals on the line side accept up to 6 x 40 mm² conductors per phase, entry from bottom or top, so the cable trench or overhead tray must align with the gland plate. The enclosure is grey RAL 7032, and the operating position is vertical ±10 degrees — no tilting it into a tight corner. Vibration resistance is 4.9 m/s² from 10 to 50 Hz, which covers normal floor vibration in an industrial substation but not a reciprocating compressor skid.
Overload profiles and motor compatibility
The drive supports two overload profiles. Standard overload: 1.2 x In for 60 seconds or 1.5 x In for 3 seconds. High overload: 1.5 x In for 60 seconds or 1.85 x In for 3 seconds. The high overload profile suits applications with heavy breakaway torque — crushers, mills, or extruders — where the motor needs 150 % current for a full minute to get the load turning. Standard overload is enough for centrifugal pumps and fans. The drive is designed for both synchronous and asynchronous motors, with a speed range of 20 to 100 %. Output voltage is limited to the supply voltage — there is no step-up transformer inside the drive, so the motor must be wound for the incoming line voltage. The 20 kV AC dielectric strength between earth and power terminals gives solid isolation for medium-voltage service.
The ATV1200A15854242 carries CE marking and complies with EN/IEC 61800-3 (EMC), EN/IEC 61800-4 (immunity), and EN/IEC 61800-5-1 (safety). Overvoltage category II applies, so the drive expects the installation to have surge suppression upstream at the MV transformer secondary. The integrated EMC filter covers conducted emissions for the first environment (industrial) per EN/IEC 61800-3. No external filter is needed for a standard industrial installation, but a site with a residential supply boundary may require an additional external filter on the input.
The product composition includes two plinths, a phase-shifting transformer, medium-voltage arrestors, cooling fans, a human-machine interface, and 12 power cells. The 12-cell architecture is the core of the 24-pulse design — each cell is a single-phase IGBT inverter fed from a separate secondary winding on the transformer. If a cell faults, the drive can often continue running at reduced capacity until a replacement cell arrives.