Schneider Electric ATV312H075N4 Variable Speed Drive

Schneider Electric's ATV312H075N4 is a 0.75 kW (1 HP) three-phase variable-speed drive designed for 380–500 V systems. It belongs to the Altivar 312 family and ships with an integrated heat sink, delivering sensorless flux vector control via PWM for smooth speed and torque regulation on asynchronous motors in compact machinery. The drive is rated for 3‑phase input at 380–500 V and offers about 2.4 kVA of apparent power, with a nominal input current around 3.6 A at 380 V and 2.7 A at 500 V, and a dissipation of roughly 41 W at full load. It includes an integrated EMC filter and provides a logic-power supply of 19–30 V DC (100 mA) for its control electronics, plus a 10–10.8 V reference path for potentiometer feedback. Communication options cover CANopen and Modbus, with optional cards for CANopen daisy chain, DeviceNet, and Fipio, enabling integration into industrial networks. Protection is listed as IP20 on the upper section without a cover plate, IP21 at the connection terminals, and IP31/IP41 on the upper part depending on configuration. Typical applications include driving small to medium industrial fans, pumps, conveyors, and other single-motor loads in automation, especially where compact, energy-efficient speed control is needed. Note: Schneider Electric lists ATV312H075N4 as discontinued with service-only status (discontinuation date January 26, 2021; end of service date January 1, 2026).