Product Description:

The FC-051P22KT4E20H3132F0061XCXXXSXXXX is an AC variable-frequency drive produced by Danfoss for the VLT FC 51 Micro Drives series. This compact inverter converts fixed-frequency utility power into a modulated output signal that allows industrial machinery to vary induction motor speed on conveyors, pumps, and fans. Adjusting motor speed to match real-time demand can improve energy use and process consistency in space-restricted electrical enclosures. The drive is supplied as a chassis-style module for installation behind a cabinet door. It connects to external controls through screw terminals located along its top edge.

The inverter supplies up to 22 kW of continuous output power for applications that require moderate mechanical power without an oversized cabinet. Its input terminals accept 380–480 VAC, allowing connection to common industrial power distribution systems within that voltage range. The drive is designed for a three-phase input, which supports balanced current across the incoming phases. Its IP20 chassis enclosure protects against accidental finger contact with live internal parts. Because the chassis does not provide complete protection against dust or water, the surrounding electrical panel must provide suitable sealing for the installation area. Cabinet airflow must also be sufficient to remove heat produced during continuous operation. The compact housing helps conserve mounting space while leaving the power and control terminals accessible for wiring.

An integrated RFI Class A1/B filter attenuates conducted electrical emissions and helps the installed system meet applicable industrial electromagnetic compatibility limits. The internal design uses series code 051, which corresponds to the compact frame arrangement used for this drive line. Its control functions include automatic energy optimization, which adjusts motor operation to reduce unnecessary losses when the connected load changes. The drive also uses slip compensation to help maintain the requested motor speed as mechanical demand fluctuates. These control functions operate through the inverter’s modulated output rather than requiring a separate motor-speed regulator. External commands can be connected through the available control terminals, allowing the drive to respond to machine-level start, stop, and speed-reference signals. The chassis arrangement keeps the controls within the electrical enclosure while allowing the cabinet to provide the required physical protection and ventilation.