Product Description:

Danfoss produces the FC-202P18KT4131X9215 for its VLT FC 202 AQUA Drives series. The unit is a variable frequency drive intended to modulate centrifugal pump and fan motors within water-treatment automation. By converting fixed-frequency mains power into a controlled output, it lets process controllers match flow or pressure to real-time demand. This control method can reduce unnecessary motor operation when the required flow decreases.

Its continuous output is rated at 18.5 kW, providing up to 25 HP to an induction motor when cooling and ambient limits are respected. The input section accepts 380 to 480 VAC from a three-phase power supply, so the inverter can be wired directly to common industrial feeders without a transformer. Energy performance reaches the IE2 efficiency class, indicating reduced heat loss at typical load points. The drive can service motors through unshielded leads up to 300 m or shielded leads up to 150 m, providing flexibility in cabinet placement. Full-load operation is supported at ambient temperatures starting at 0 °C. Thermal monitoring adjusts switching patterns to protect the power stage during operation.

Electromagnetic behavior complies with EN 61800-3, simplifying plant conformance with general industrial emission limits. The inverter delivers full current at elevations up to 1000 m above sea level and can continue operating with graduated derating at elevations up to 3000 m. Reliable switching is maintained in ambient air as warm as 50 °C when the cabinet has sufficient airflow. The enclosure withstands continuous vibration of 1.0 g, protecting circuit boards and busbars on pump skids. Control terminals accept conductors ranging from 0.25 mm² to 1 mm² for flexible wire or 1.5 mm² for solid wire. The protective grounding stud requires a 10 mm² grounding conductor.