FC-102P1K5T4E20H2XG by Danfoss

The FC-102P1K5T4E20H2XG is an AC variable-frequency drive built by Danfoss and included in the VLT FC 102 HVAC Drives series. It is engineered to regulate the speed of centrifugal fans, pumps, and compressors so that building-services equipment delivers airflow or water flow that matches real-time demand instead of running at constant speed. By trimming motor frequency, the drive cuts electrical consumption and minimizes mechanical wear, making it a standard control element in industrial and commercial automation panels.

The drive accepts line supplies between 380-480 VAC, allowing direct connection to common low-voltage distribution networks without an autotransformer. It is designed for three-phase power, so each output leg shares load current evenly and maintains balanced torque on the connected motor. An enclosure rating of IP20 identifies that the chassis offers touch protection for internal components when the unit is installed inside a cabinet. Operator interaction is through a graphical local control panel that presents setpoints, status text, and parameter menus on its display. In applications where energy must be dissipated quickly, some drives include a brake chopper; this model omits that feature, as indicated by its no brake chopper designation, because HVAC loads rarely require dynamic braking.

Cabinet integration is simplified by the provision for normal cabinet mounting, covering A, B, and C frame sizes so the installer can bolt the heat sink directly to a backplate. Conducted electromagnetic noise is attenuated by an integrated RFI filter, reducing the need for external line filters when meeting EMC limits in commercial facilities. Within Danfoss nomenclature, the product group is specified as a VLT HVAC Drive, and the family identifier of 102 differentiates it from other VLT variants that target standard industrial or aqua applications.