Product Description:

The FC-202P45KT4131B9052 is an AC variable frequency drive manufactured by Danfoss for the VLT FC 202 AQUA Drives series. Designed for pump and fan duty in water and wastewater facilities, it converts fixed-frequency three-phase power into a speed-controlled output that allows flow to track real-time demand. The drive is installed in control cabinets, connects to PLC I/O through configurable terminals, and acts as the regulated power stage between level, pressure, or flow sensors and the induction motor.

This model delivers a typical motor output of 45 kW, providing sufficient mechanical power for midsized centrifugal pumps. When operating from the rated three-phase supply, it maintains a continuous output current of 80 A while drawing 73 A on the input side to account for inverter losses and control power. The permissible supply range extends from 380–480 VAC, so the same unit can serve 400 V or 460 V mains without tap changes. Its efficiency ratio reaches 0.98 under nominal conditions. The estimated power loss is 843 W, which can be used to determine the cooling requirements for the control cabinet.

The inverter has an apparent power capacity of 63.7 kVA, and its mains circuit can be protected with a 125 A upstream fuse coordinated with the circuit breaker. Reliable performance is maintained at elevations up to 1000 m and at ambient temperatures ranging from 0 °C to 50 °C, permitting installation in most plant rooms without derating. Control outputs can drive analog loads with an impedance as low as 500 Ω, and digital inputs tolerate up to 28 V DC, allowing direct connection to standard instrumentation. Motor and line conductors with a cross-sectional area of 50 mm² may run up to 150 m when shielded or 300 m when unshielded. Conductors of the same size may be used for dynamic braking or load resistors.