Product Description:

The FC-202P5K5T4131F7943 is a variable frequency inverter produced by Danfoss for the VLT FC 202 AQUA Drives series. It belongs to the VLT AQUA Drive product group and serves centrifugal pumps, blowers, and similar flow-control equipment in water and wastewater facilities. By synthesizing a modulated output waveform, the drive matches motor speed to real-time demand, stabilizing process pressure while reducing the electrical energy drawn from the mains.

The electrical section has a mechanical output rating of 5.5 kW, equivalent to 7.5 HP, when the controller is supplied by a 380–480 VAC three-phase network. With an input of 380–440 V, the rectifier draws a maximum of 11.7 A; this maximum falls to 9.9 A when the line voltage is between 441 and 480 V. Continuous apparent power capacity is 9.0 kVA at 400 V and 8.8 kVA at 460 V, allowing the inverter to handle full torque across its voltage range. Conversion efficiency reaches 0.97, so only 187 W of heat is dissipated under nominal load. The design limits power cycling to two starts per minute to protect the DC-link components. Upstream protection can be provided by a 30 A prefuse, while Danfoss recommends a 16 A time-delay fuse for typical installations.

The inverter maintains full current at ambient temperatures up to 50 °C without derating, which supports operation in warm electrical enclosures. For short-circuit isolation, the supply fuse must not exceed 32 A, and the switchgear must be suitable for the three-phase supply associated with the FC 202 series. Motor leads may extend to 150 m when shielded or 300 m when unshielded, providing flexibility for remote submersible or roof-mounted motors. The permitted lead lengths help control reflected-wave voltage at the motor terminals while supporting installations that require substantial separation between the inverter and connected equipment.