Medium voltage drive architecture and power ratings
The ATV1200A39105555 is a Schneider Electric Altivar 1200 medium voltage variable speed drive rated for 3269 kW motor power with 3910 kVA apparent power, drawing 410 A line current from a 2970–3630 V supply. The 30-pulse diode rectifier bridge input stage delivers low line current harmonics — the integrated EMC filter and multi-pulse topology typically meet IEEE 519 without additional filtering, which simplifies grid compliance for the site electrical engineer.
Overload capability and motor starting duty
Standard overload rating: 1.2 × In for 60 s and 1.5 × In for 3 s. High overload rating: 1.5 × In for 60 s and 1.85 × In for 3 s. These profiles cover both normal starting and high-torque applications like conveyors or crushers where the breakaway torque exceeds 150 %. The drive handles both asynchronous and synchronous motors, so it fits retrofit projects where the existing motor type may differ from the original specification.
Physical footprint, enclosure, and site preparation
Floor-standing enclosure with separate air flows for power and control sections. Standard efficiency dimensions: 2740 mm high × 6070 mm wide × 1700 mm deep. High efficiency variant: 3040 mm high × 6370 mm wide × 1800 mm deep. The forced convection cooling moves 46,500 m³/h — the room ventilation and floor loading must be sized accordingly. Operating position is vertical ±10°, altitude derating starts at 1000 m (0.6 % per 100 m above), and relative humidity range is 0–90 % (0–95 % optional). The 80 dB noise level means hearing protection zones are needed near the drive.
Control I/O and auxiliary supply requirements
Four software-configurable analogue inputs (0–20 mA / 4–20 mA, 24 V max, 250 Ω impedance) and one analogue output of the same type. Six discrete inputs standard, expandable to ten. The control section requires an external 220 V AC supply at 3 kVA; the cooling fan runs on a separate 380 V AC supply. Electrical isolation between power and control circuits is maintained. The drive includes ground fault protection integrated at the drive level, and the prospective line short-circuit current rating is 31.5 kA for 150 ms — this sets the upstream breaker coordination requirement.
Standards compliance and lifecycle status
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. Dielectric strength tested at 20 kV AC between earth and power terminals.