FC-202N355T4135X1957 Danfoss
Wake Industrial LLC is not an authorized distributor of this product.
The Danfoss FC-202N355T4135X1957 is part of the VLT FC 202 AQUA Drives series and operates with a power rating of 355 kW and 475 horsepower. It supports a mains voltage range of 380 to 480 VAC with three phase power, and delivers a maximum output frequency of 590 Hz. The drive achieves an energy efficiency class of IE2 and has a true power factor of at least 0.9.
Internal Product Review
The FC-202N355T4135X1957 is a Danfoss VLT FC 202 AQUA drive with a 355 kW rating and three-phase power input. Operation remains efficient across 380 to 480 VAC mains voltage with a true power factor of at least 0.9, supporting stable pump and fan control. Excellent performance range is available through a maximum output frequency of 590 Hz, making this model a strong choice for demanding water and wastewater installations.
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Product Description:
The FC-202N355T4135X1957 is a variable-frequency drive produced by Danfoss for the VLT FC 202 AQUA Drives series. Installed between the three-phase mains and an induction motor, it delivers adjustable voltage and frequency so that pumps, blowers, and other rotating equipment in water and wastewater facilities can track process demand through precise speed control. By replacing throttling valves with electronic regulation, the drive reduces energy consumption, limits hydraulic shock, and integrates smoothly into PLC-based automation architectures.
Rated for a three-phase input of 380–480 VAC, the inverter connects directly to standard industrial feeders. Its continuous electrical output reaches 355 kW, matching large axial-flow or vertical turbine pumps. The power module can synthesize carrier-based output up to 590 Hz, allowing high-pole motors to run above base speed when a temporary flow boost is required. Programmable acceleration and deceleration ramps extend to 3600 s; long ramps minimize mechanical stress and reduce inrush current. Power factor correction maintains a displacement power factor of at least 0.9, lowering reactive demand on the utility and helping plants meet billing thresholds. An integrated 157 A thermal relay disconnects the inverter when output overcurrent or overheating is detected, helping prevent semiconductor damage.
Shaft power is equivalent to 475 hp, enabling installation with motors of the same rating that were previously controlled by contactors. The enclosure permits operation in ambient air up to 50 °C, and full performance is maintained at altitudes up to 1000 m without derating the current or switching frequency. Classified under efficiency grade IE2, the drive meets the second tier of IEC 61800-9 efficiency requirements. For dynamic braking, two 35 mm² leads connect to an external resistor with a minimum resistance of 1.2 Ω. The brake chopper dissipates 32 kW continuously, while the control algorithm limits phase imbalance to 3% during rapid stops.
