Product Description:

The FC-102P2K2T4E20H1XGX is an AC variable frequency drive produced by Danfoss for the VLT FC 102 HVAC Drives series. It regulates the speed of three-phase induction motors so that ventilation and pumping equipment run only as fast as the building load demands. By synthesizing a variable output frequency, the unit supports energy-efficient control of fans, AHU blowers, and circulation pumps that would otherwise operate at a fixed mains frequency. It is well suited for applications where airflow or water flow must be adjusted smoothly instead of by mechanical throttling.

It accepts a mains range of 380 - 480 VAC and is intended for installations with three-phase power, so no external phase conversion is needed. A front-mounted graphical local control panel displays parameters and trends for quick status review and local setup. Mechanical integration uses normal cabinet mounting in A, B, and C frames, which helps the drive fit standard enclosure layouts for HVAC equipment. For deceleration energy, the unit uses the absence of a brake chopper, so no internal braking resistor element adds heat inside the cabinet. The internal boards use uncoated PCBs, so the drive should be installed where moisture and airborne contaminants are controlled.

Inside that enclosure, the housing provides IP20 / Chassis protection, giving finger-safe access while relying on the panel for additional sealing. Conducted emissions are limited by an integrated filter that meets RFI Class A1/B (C1), which helps support EMC compliance in commercial building systems. The VLT HVAC Drive platform includes predefined airflow macros, proportional-pressure sleep routines, and automatic energy optimization. These functions allow building automation systems to manage variable-torque motor loads without custom programming and help match motor speed to changing demand throughout the day. This can improve comfort control in occupied spaces and stabilize flow in closed-loop pumping circuits.