FC-102P18KT4E20H1 Danfoss
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The FC-102P18KT4E20H1 is a 25 HP HVAC drive manufactured by Danfoss as part of the VLT FC 102 HVAC Drives series. It features a power rating of 18.5 kW, operates on three phase power at 380 to 480 VAC, and is designed for normal cabinet mounting on A, B, or C frames. This drive includes an IP20 chassis protection level and an RFI Class A1/B filter.
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Product Description:
The FC-102P18KT4E20H1 is a variable frequency drive manufactured by Danfoss and supplied within the VLT FC 102 HVAC Drives series. It is intended to modulate fan and pump motors so building-automation systems can match air-handling or chiller demand rather than running equipment at fixed speed. By adjusting output frequency and voltage, the drive lowers energy consumption, reduces mechanical wear on rotating components, and allows centralized controllers to implement precise airflow and temperature profiles in commercial or industrial facilities. It also gives building controls smoother ramp-up and ramp-down behavior, which can reduce pressure shocks in piping and duct systems.
This model has a continuous output rating of 18.5 kW, giving it the capacity to run medium-sized induction motors common in air-moving applications. The power section accepts line supplies between 380–480 VAC, allowing installation on international low-voltage networks without tap-changing transformers. Operation is based on three-phase power, which balances harmonic currents across phases and supports rated motor torque at lower speeds. Its output also corresponds to 25 HP, which aligns with standard IEC and NEMA motor nameplates during retrofits. The electronics are housed in an enclosure rated IP20 / Chassis, which provides finger protection when the unit is mounted inside a ventilated control cabinet and keeps heat sinks accessible for forced-air cooling. This enclosure style is intended for protected indoor installation rather than direct exposure to the surrounding environment.
Panel builders can secure the drive using normal cabinet mounting for A, B, and C frames, which helps maintain frame-size consistency across the power range and minimizes spacer hardware. Conducted emissions are limited by the integrated RFI Class A1/B (C1) filter. This helps the installation meet residential and light-industrial EMC limits without external chokes. Within a controller database, the product is identified as a VLT HVAC Drive, and it uses the internal series code 102 for parameter grouping and service diagnostics.
