Schneider ATV312HU30N4 Variable Frequency Drive

Overview

The Schneider Electric ATV312HU30N4 is a 3 kW variable frequency drive from the Altivar 312 series. It controls three-phase asynchronous motors with voltages from 380 V to 500 V. The drive offers precise motor speed and torque regulation using advanced control methods. Its compact design ensures easy integration in industrial panels. This VFD delivers energy-efficient performance suitable for pumps, fans, conveyors, and general machinery. Built-in protection features safeguard the motor and drive against faults. The unit supports multiple communication protocols for seamless automation integration. Cooling relies on forced air, and the drive mounts easily on walls or panels.

Technical Specifications

• Motor Power Rating: 3 kW (4 HP)

• Rated Supply Voltage: Three-phase 380–500 V AC

• Apparent Power: 7.1 kVA

• Power Dissipation: 125 W at nominal load

• Frequency Range: 50/60 Hz

• Output Frequency: 0.5 to 500 Hz

• Control Methods: V/F control, Sensorless flux vector control

• Logic Inputs: 6 programmable

• Analog Inputs: 3 (2 voltage, 1 current)

• Logic/Analog Outputs: 1 analog, 2 relay outputs

• Communication Protocols: Modbus RTU, CANopen

• Protection Features: Overvoltage, undervoltage, phase loss, short-circuit, thermal

• Cooling Method: Forced air cooling

• Mounting: Wall or panel mount

• Switching Frequency: 2–16 kHz adjustable

• Braking Torque: 150 % for 60 s with resistor; 100 % continuous with resistor

• Acceleration/Deceleration: Linear, 0.1–999.9 s adjustable

• Motor Slip Compensation: Automatic or adjustable

• Dimensions (WxHxD): 142 x 184 x 152 mm

• Net Weight: 6.8 lb

• Environmental: Operating temperature -10 °C to 50 °C, vertical ±10° installation

• Certifications: CE, UL, CSA, DNV, NOM, C-tick

• Electrical Protection: Phase breaks, overcurrent, overheating, thermal, short-circuit

• Physical Interface: RS485 multidrop serial link

• Transmission Rates: 10 kbps–1 Mbps for CANopen, 4800–19200 bps for Modbus

• Frequency Resolution: 0.1 Hz

• Display: Four 7-segment LED units for status, one red LED for drive voltage