Product Description:

The FC-301P22KT2131B8973 variable frequency drive is manufactured by Danfoss as part of the VLT FC 301 Automation Drives series within the wider VLT AutomationDrive FC product group. Designed for three-phase 200–240 VAC networks, the drive modulates the supply to deliver controlled voltage and frequency for industrial motors used in pumps, conveyors, and compact process skids. Its 22 kW power rating covers midsized loads that need adjustable speed rather than fixed-frequency starters, allowing the automation controller to match motor torque to real-time demand and reduce energy losses during partial-load operation.

Under rated conditions, the drive operates at an efficiency of 0.97, which helps limit heat generation. Output frequency is adjustable between 0–590 Hz, enabling both low-speed positioning and operation above synchronous speed from the same inverter. The power section can deliver a continuous output current of 88 A, while the protection curve allows a 150% overload for 1 minute every 10 minutes to accommodate short overloads without tripping. During these events, the inverter can supply up to 132 A before the timer expires. Internal controls limit input current to 80 A, accept a 50/60 Hz supply with a tolerance of ±5%, and scale output voltage from zero to 100% of the incoming mains voltage.

High-demand starts are supported by a starting torque of 160% for 60 seconds, providing enough pull-out margin for loaded conveyors or positive-displacement pumps. The thermal design limits full-load power loss to 874 W, and reliable operation is maintained at ambient temperatures up to 45 °C without derating. Apparent input power reaches 35.1 kVA, aligning with IE2 efficiency class targets for low-voltage installations. The unit accepts shielded motor cables up to 50 m long, providing flexibility when the motor is installed away from the drive enclosure. It also maintains proportional voltage control so sensitive machines are not overexcited when supply conditions fluctuate.