Product Description:

The 131G2885 is a variable frequency drive produced by Danfoss for the VLT FC 102 HVAC Drives series. This unit converts fixed mains voltage into a regulated output for centrifugal fans, pumps, and compressors used in building automation. By adjusting motor speed according to demand signals from a building management system, the drive helps maintain airflow, temperature, and pressure targets while reducing energy consumption. It integrates into standard control panels and follows industry guidelines for HVAC equipment sizing.

Input power is accepted through three-phase power, allowing the inverter section to draw balanced current from typical 380–480 V building services. The enclosure carries an IP21 / Type 1 rating, so its drip-resistant ventilation and finger-safe openings suit indoor electrical rooms. Users program setpoints through the integrated graphical local control panel, which provides text menus and trend readouts on site without external tools. Cable routing is simplified by standard cable entries, so no special glands or offset plates are required to terminate motor, mains, or control wiring. For dynamic deceleration, the drive relies on motor losses because it is configured with no brake chopper.

The control electronics use an uncoated printed circuit board, so installation in a clean, temperature-controlled switchboard is recommended to avoid electrical tracking caused by moisture or dust. The drive has no installed filter, so any required radio-frequency interference mitigation must be added externally at the cabinet level. Mechanical fixing supports dry-room mounting for B, C, D, and E frames, providing established hole patterns across several frame sizes for wall or backplate placement. The unit carries the series code 102, ensuring compatibility with FC 102 service tools and application macros supplied by Danfoss. These tools support parameter adjustment for fan, pump, and compressor operation through the drive’s accessible control interface.