1045 kW medium voltage drive — 36-pulse input, floor-standing
The ATV1200A12506666 is an Altivar 1200 medium voltage variable speed drive rated for 1045 kW motor power at 1250 kVA apparent power, supplied from a 2970–3630 V line via a 36-pulse diode rectifier bridge. It is assembled in a floor-standing enclosure with separate air flows for power and control sections — the control section draws from an external 220 V AC, 3 kVA supply; the cooling fans run on 380 V AC. The drive delivers output voltage up to the supply voltage level and is intended for asynchronous motors, with a speed range of 20–100 %.
Overload profiles and fault withstand — sizing the installation
Standard overload rating: 1.2× In for 60 s or 1.5× In for 3 s. High overload rating: 1.5× In for 60 s or 1.85× In for 3 s. Prospective line short-circuit current is 31.5 kA for 150 ms; dielectric strength between earth and power terminals is 20 kV AC. The drive includes integrated EMC filtering and provides ground fault protection as standard.
Physical footprint and enclosure details
Enclosure dimensions: 1600 mm depth (high efficiency) or 1500 mm depth (standard efficiency); width is 3960 mm (standard efficiency) or 4260 mm (high efficiency); height is 2670 mm for both variants. The enclosure is grey (RAL 7032) and must be mounted in a vertical position within ±10 degrees. Cooling is forced convection requiring 19800 m³/h (high efficiency) or 16500 m³/h (standard efficiency) of cooling air; noise level is 80 dB.
CE marked and designed to EN/IEC 60204-11, EN/IEC 60529, EN/IEC 61800-3, EN/IEC 61800-4, and EN/IEC 61800-5-1. Pollution degree 2 per EN/IEC 61800-5-1; overvoltage category II per the same standard. Operating altitude up to 1000 m without derating; from 1000–2000 m derate current by 0.6 % per 100 m.