FC-202P18KS4135U4734 Danfoss
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The Danfoss FC-202P18KS4135U4734 is a 25 HP drive from the VLT FC 202 AQUA Drives series with a power rating of 18.5 kW and an efficiency of 0.96. It supports input currents of 78 A at 380-440 V and 72 A at 441-480 V, and operates with single phase power between 380 and 480 VAC. The drive's enclosure size is C1, and it is rated for a maximum ambient temperature of 50 °C and a maximum altitude of 1000 meters.
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Product Description:
Danfoss manufactures the FC-202P18KS4135U4734 as part of the VLT FC 202 AQUA Drives series. This variable-frequency drive accepts a 380–480 VAC three-phase input and modulates the voltage and frequency supplied to a connected motor. It regulates pump or fan speed in water and wastewater systems, allowing motor operation to follow changes in process demand. Variable-speed control can reduce energy consumption, pressure spikes, and mechanical wear in applications that do not require continuous full-speed operation.
The drive provides a mechanical output of 25 HP, which corresponds to an electrical power rating of 18.5 kW. With a supply voltage between 380 and 440 V, the input section draws 78 A and supplies an output current of 37.5 A to the motor. When the supply voltage is between 441 and 480 V, the input current decreases to 72 A and the motor output current decreases to 34 A. The thermal design accounts for 740 W of internal power loss, so the installation must provide enough airflow to remove the generated heat. The enclosure has a C1 frame size, which establishes the applicable mounting space and cable-clearance requirements. Operation without altitude derating is permitted up to 1,000 m above sea level, while suitable line protection must account for the available prospective fault current.
Electrical efficiency reaches 0.96 at nominal load, limiting conversion losses during normal operation. Field wiring can use conductors with cross-sectional areas of up to 50 mm², providing capacity for the required supply and motor connections. Upstream circuit protection may use a maximum pre-fuse rating of 160 A, subject to the applicable installation and coordination requirements. The maximum ambient operating temperature is 50 °C before output-current derating is required. Screened motor cables help control electromagnetic interference between the drive and connected equipment. Supply, motor, grounding, and control conductors must be routed with appropriate separation to maintain reliable signal transmission and reduce electrical noise in the installation.
