Product Description:

The FC-101P45KT4E20H3 is an AC drive released by Danfoss within the VLT FC 101 HVAC Basic Drives series. It regulates the speed of induction motors that move air or water through building service equipment, allowing automation systems to match fan or pump output to real-time demand instead of operating at a fixed mains frequency. Power conversion is handled by insulated-gate bipolar transistors that modulate output frequency and voltage. This control allows HVAC systems to adjust airflow or fluid circulation while reducing energy drawn from the mains.

The model can deliver up to 45 kW of continuous electrical power, corresponding to a motor output rating of 60 HP. It is designed for supply networks in the 380–480 VAC range and operates with a three-phase feed, so it can connect directly to compatible industrial distribution panels without phase-conversion hardware. The enclosure has an IP20 chassis rating, which provides protection against accidental contact with internal components. Because the chassis is open to the surrounding air, the drive is intended for installation inside a suitable control cabinet. Its variable-frequency output lets connected motors run only as fast as the application requires, reducing unnecessary mechanical load during periods of lower demand.

The VLT HVAC Drive designation indicates support for control functions intended for fans and pumps, reducing the amount of parameter entry required during setup. Conducted emissions are limited by the integrated RFI Class A1/B (C1) filter, which supports installation on compatible low-voltage power networks without separate suppression components. The family code 101 places the inverter among the basic HVAC units that use related mounting arrangements and accessory options. Built-in self-diagnostic routines report operating faults through the front-panel menu or fieldbus connection. These diagnostic functions provide access to drive status, alarms, and operating conditions without requiring separate monitoring equipment.