Product Description:

The FC-202PK55T4136H9374 is an AC variable frequency drive in the VLT FC 202 AQUA Drives series produced by Danfoss. The unit converts fixed mains power into a modulated output that allows process controllers to adjust pump or blower speed with fine resolution. By delivering closed-loop torque control to standard induction motors, it supports precise flow, pressure, and level regulation in municipal and industrial water treatment systems and other fluid-handling equipment. The internal identifier 202 indicates its position within the broader drive platform.

For electrical integration, the inverter accepts a three-phase supply of 380–480 VAC and draws a continuous input current of 1.4 A at the upper end of that range. Inside the power stage, semiconductor switching produces a continuous output current of 1.6 A, corresponding to 1.3 kVA at 460 V. Its motor output is rated at 0.55 kW, which is equivalent to 0.75 HP and is suitable for small submersible pumps and fan-coil motors. Upstream protection is provided by a recommended 10 A prefuse, while the three-phase topology maintains balanced loading across the supply lines. These electrical values also support the selection of suitable conductors, protective devices, and connected motors.

The drive operates with an efficiency of 0.95 and belongs to the IE2 energy class. Under full load, it dissipates 42 W, allowing natural convection to provide adequate cooling when installation clearances are maintained. The permitted ambient temperature reaches 50 °C. Motor conductors may have a cross-sectional area of up to 4 mm², while mains disconnect cables may have a cross-sectional area of up to 6 mm². Shielded motor cables can extend to 150 m, and unshielded motor cables can extend to 300 m without compromising control accuracy. The start-stop rate is limited to two activations per minute, which protects the inrush-limiting components while accommodating typical pump cycling requirements.