FC-202P55KT4131H3750 Danfoss
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The Danfoss FC-202P55KT4131H3750 is part of the VLT FC 202 AQUA Drives series and delivers a rated power of 55 kW with a continuous output current of 105 A. It features an efficiency of 0.98 and operates on mains voltages between 380 and 480 VAC three-phase power. This drive includes one programmable analog output, two digital pulse outputs, and an RFI filter classified as Class A1/B (C1).
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Product Description:
The FC-202P55KT4131H3750 is a variable frequency drive manufactured by Danfoss for the VLT FC 202 AQUA Drives series. It modulates the speed of three-phase induction motors used in pumping and aeration systems. This speed control allows motor output to match real-time flow or pressure demand while reducing energy consumption and mechanical stress on pipelines and impellers.
The drive supplies up to 55 kW of continuous motor output and delivers a motor-side current of 105 A. On the line side, it draws 95 A, and its internal power section converts the incoming 380–480 VAC mains power into a pulse-width modulated waveform. Total drive efficiency is 0.98, helping limit electrical losses during continuous operation. A continuous apparent-power rating of 83.7 kVA at 460 V supports transformer and supply sizing. The three-phase input topology is compatible with standard industrial power distribution networks. The unit includes an RFI Class A1/B (C1) filter to control conducted emissions, and its terminals accept motor and line conductors with cross-sectional areas up to 50 mm². These power terminals accommodate the larger conductors commonly required for high-current pump and aeration motors.
The control terminal block provides one programmable analog output that can drive a load of up to 500 Ω. This channel has an 8-bit resolution and can transmit proportional feedback to valves, meters, or supervisory control equipment. Digital inputs tolerate 28 V DC and present an impedance of 4 kΩ to connected PLC cards. The corresponding transistor output switches at up to 32 kHz, supporting high-speed pulse signals used for flow metering. Two digital pulse outputs can transmit operating status, accumulated runtime, or fault information, while the analog channel supports legacy 0–10 V signaling. Branch-circuit protection can use the recommended 160 A maximum pre-fuse value to coordinate the drive with upstream protective devices. Heat dissipation at rated load is 1100 W, allowing cabinet airflow and cooling capacity to be planned for constant-torque pump operation. The published thermal loss also helps maintain the inverter within its permitted operating temperature when installed in an enclosure.
