FC-102P18KT4E21H2 Danfoss
Wake Industrial LLC is not an authorized distributor of this product.
The Danfoss FC-102P18KT4E21H2 is a 25 HP drive in the VLT FC 102 HVAC Drives series. Designed for dry room mounting with B, C, D, and E frames, it features a power rating of 18.5 kW and operates on three-phase 380-480 VAC. The drive includes an RFI filter and offers IP21 protection.
Internal Product Review
The FC-102P18KT4E21H2 is a Danfoss VLT HVAC drive designed for three-phase power on 380 - 480 VAC mains. A 25 HP output and IP21 / Type 1 protection make this unit well suited for dependable HVAC duty in controlled indoor installations. A very capable drive for building systems where clean, stable motor control is a priority.
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Product Description:
The FC-102P18KT4E21H2 is an AC variable frequency drive built by Danfoss and supplied under the VLT FC 102 HVAC Drives series. The unit modulates the speed of induction motors that move air or water in building management systems, allowing controllers to adjust flow according to operating demand and reduce energy consumption. By converting fixed-frequency mains power into a variable-frequency output, the drive provides an interface between automation controls and mechanical equipment in air-handling units, pumps, and cooling towers. This speed regulation also helps reduce unnecessary motor operation during periods of low demand.
It delivers a continuous electrical output of 18.5 kW, allowing the connected motor to operate at the drive’s rated power without derating. The input section accepts line voltages from 380 to 480 VAC, matching common electrical distribution systems in commercial facilities. Connection is made using three-phase power, which balances current across the supply conductors and supports stable operation under changing motor loads. The drive is designed for dry-room mounting with B, C, D, and E frames, so it should be installed in an area protected from moisture. Its enclosure has an IP21 / Type 1 rating, providing protection against accidental contact, vertically falling water drops, and moderate amounts of dust. This enclosure format permits wall or panel placement inside suitable mechanical rooms while allowing the airflow needed for cooling.
The drive supports a mechanical motor output of 25 HP, making it suitable for larger fans, centrifugal pumps, and similar HVAC loads. A factory-installed RFI filter reduces conducted radio-frequency interference, allowing the drive to operate near sensitive control wiring when installation practices meet applicable requirements. Within Danfoss nomenclature, the unit belongs to the VLT HVAC Drive product group. It carries the family code 102, which supports a common parameter structure and compatible option cards across related drives. The variable-speed output can regulate airflow or water circulation without relying entirely on dampers, valves, or other mechanical throttling devices. Built-in motor control functions allow building automation systems to vary equipment speed as heating, cooling, and ventilation demand changes throughout the operating cycle.
