Product Description:

The FC-202P7K5S4131G2905 is a variable-frequency drive produced by Danfoss for the VLT FC 202 AQUA Drives series. It provides speed regulation for centrifugal pumps and blowers in water-handling systems. This control allows plant systems to match motor speed to real-time flow or pressure demands while reducing energy use and mechanical stress on connected equipment.

This drive operates from a 380–480 VAC three-phase supply and reaches an electrical efficiency of 0.96. It can operate a motor with up to 10 HP of mechanical output. When supplied with 380–440 V, the rectifier draws 33 A; the current requirement drops to 30 A on 441–480 V lines. Within the lower voltage range, the inverter delivers 16 A to the motor and can modulate the output frequency up to 590 Hz, allowing oversynchronous operation of compatible high-speed pump impellers. Apparent power is 11.0 kVA at 400 V and 11.6 kVA at 460 V, and the drive tolerates a maximum phase imbalance of 3.0%. Upstream circuit protection uses a 63 A prefuse to coordinate fault clearing with the input rectifier. The drive permits no more than two power-ups per minute to prevent excessive thermal stress on the charging circuit.

At higher supply voltages, the inverter provides 14.5 A of continuous output current. Its 7 kHz switching frequency helps reduce audible motor noise during operation. The power section is rated for 7.5 kW of continuous service, while internal power dissipation can reach 300 W under rated conditions. Enclosure airflow must be sufficient to remove this generated heat and maintain an acceptable operating temperature. The motor and line terminals accept conductors up to 10 mm² (7 AWG), supporting power connections while limiting voltage drop across longer cable runs. The 202 series format allows the unit to be installed alongside compatible AQUA drive modules in coordinated pumping systems.