Product Description:

The FC-102P45KT4E20H2 is an AC variable frequency drive produced by Danfoss for the VLT FC 102 HVAC Drives series. It regulates the rotational speed of three-phase induction motors that power fans, pumps, and compressors in ventilation and chilled-water systems. By varying the motor output frequency, the drive can regulate airflow or fluid flow without relying entirely on mechanical throttling devices. This method can reduce energy consumption when equipment operates below its maximum capacity. The drive also helps maintain process variables such as static pressure and allows a building management system to schedule operating cycles as part of a larger automation system.

The inverter accepts utility power from 380–480 VAC feeders, covering common 400 V industrial power systems in Europe and North America. Within this input range, it supports a power rating of 45 kW and provides approximately 60 HP to a compatible connected motor. The drive operates on three-phase power, which distributes the electrical load across all three supply phases and supports consistent motor torque. Its IP20 chassis enclosure protects against incidental contact with internal electrical parts while permitting airflow through the surrounding cabinet. Adequate cabinet ventilation and clearance are required to remove heat generated by the inverter during continuous operation. Supply conductors, protective devices, and motor cables should be selected for the drive’s voltage and power ratings.

The drive supports normal cabinet mounting on A, B, or C frames, allowing the heat sink and chassis to be positioned vertically inside a suitable electrical enclosure. This mounting arrangement promotes upward airflow around the heat sink and provides access to the power and control terminals. An integral RFI filter attenuates high-frequency switching noise before it travels from the drive toward the mains supply. Proper grounding and cable routing further help control conducted and radiated electrical interference in installations containing sensitive control equipment. The unit uses type code 102, which identifies it as part of the FC 102 HVAC drive platform. Its control functions are suitable for variable-torque loads commonly found in air-handling systems, cooling-water loops, and pumping applications.