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Low-voltage equipment

Variable Frequency Drive Triol AT24 line UС

Low-voltage Variable Frequency Drive Triol AT24 line UС is an advantageous and efficient solution for pumps, fans, and air conditioning systems from 5.5 to 55 kW with advanced functionality. This VFD provides the ability to connect encoders, provides remote control, also has a setup guide, supports connection via Wi-Fi and Triol service software. Triol AT24 VFD line UC is performed in a plastic case for drives with 5.5-7.5 kW power range and in a metal case for 11-55 kW drives, both with IP21 enclosure. Also, the drive is fitted with a service panel for setting with LCD display.

All Triol AT24 VFD line UC is equipped with unique Triol vector control algorithms with or without a speed sensor.


Power supply, V3×380/ 3×480 (–15%…+10%)
Power frequency, Hz50/60 (–5%…+5%)
Power range, kW4-55
Braking switchBuild-in (0.75-15 kW)  Build-in (22-55 kW optional)
Cycle adjustmentPID
Remote optionControl panel with display on seven-segment indicators,
Service remote LCD
Output frequency, Hz0-400
PWM frequency, kHz2-10

Default value: 5.5 kW to 55 kW – 5 kHz.


Housting materialPlastic (075K-7K5)

Metal (11K-55K)

Operating temperature, °C (°F)−10…+40 °C

(14…104 °F)

Cooling typeAir, forced