Delta Electronics VFD110B43A AC Variable Frequency Drive

Delta Electronics VFD110B43A is a 15 HP (11 kW) programmable sensorless AC motor drive that delivers precise speed and torque control for industrial automation. It accepts 3-phase input at 380–480V AC and provides 3-phase output from 0–480V AC, with input frequency 50/60 Hz and output frequency 0–400 Hz. The unit uses Sensorless Vector Control (SVC) alongside V/F control, supports 150% overload for 60 seconds, and includes built-in RS-485 (Modbus) for serial communication. Protection covers overcurrent, overvoltage, undervoltage, overload, and overheating, while forced-air cooling and panel-mount capability suit compact control panels in harsh environments; operating temperature ranges from -10°C to 50°C. Typical applications include conveyors, pumps, fans, compressors, HVAC equipment, water and wastewater treatment facilities, packaging machines, and broader manufacturing lines where precise motor speed control and energy efficiency are essential. This drive is commonly used in industrial automation and process control contexts to enable smooth operation, extended equipment life, and energy-conscious performance. For reference, common replacements listed include Delta VFD110B43B AC Motor Drive, ABB ACS355-03E-31A0-4 AC Drive, and Schneider ATV320D15N4C Variable Speed Drive.