Product Description:

The FC-202N110T4134F0366 is an AC variable-frequency drive built by Danfoss. It belongs to the VLT FC 202 AQUA Drives series and controls pump and fan motors used in water treatment and fluid-handling systems. By adjusting motor speed to match process demand, the drive can regulate flow or pressure while reducing unnecessary energy consumption. This operating approach is useful in applications where demand changes throughout the day and full motor speed is not always required.

The inverter delivers a continuous output of 110 kW, which corresponds to 150 HP when operating from a 380 to 480 VAC mains supply with three-phase power. Internal protection is coordinated with a thermal relay rated at 95 A, allowing the drive to disconnect before motor overheating occurs. The control electronics sample field variables every 5 ms for responsive regulation of connected equipment. One analog output transmits scaled process values, while two digital outputs, each limited to 40 mA, signal operating status to external controllers. Field wiring can use shielded motor leads or longer unshielded runs while maintaining suitable output performance. An equipment-grounding conductor of at least 10 mm² must be provided, and a single shield drain wire provides EMC bonding at the cabinet entry.

Dynamic braking is supported through an external resistor network. Recommended sizing starts with a minimum resistance of 3.6 Ω, a nominal resistance of 5.3 Ω, and a preferred 4.7 Ω selection when balancing heat dissipation against stopping time. The resistor bank can absorb up to 42 kW during braking events. The associated brake cable must have a cross-sectional area of at least 50 mm², or 1/0 AWG, to carry surge current during deceleration. For motor wiring, shielded conductors may extend up to 150 m, while unshielded conductors may extend up to 300 m without exceeding the applicable drive noise limits. Proper shield termination helps preserve the integrity of the pulse-width-modulated output over long cable routes.