Product Description:

The FC-051PK37T2E20H3XXCXXXSXXX is an AC variable frequency drive produced by Danfoss within the VLT FC 51 Micro Drives series. It converts fixed-frequency mains power into a variable output so small motors in pumps, fans, or conveyors can follow commanded speeds. The drive mounts on a DIN rail or back panel and occupies little cabinet depth, allowing speed control to be added without major layout changes. Its modest ratings make it suitable for auxiliary axes rather than high-inertia spindle duties.

The inverter delivers up to 0.37 kW, which equals 0.50 HP, so it can operate fractional-horsepower induction motors. It accepts supply lines from 200 – 240 VAC on a three-phase feed, and with no mains option selected, the supply is wired directly to the terminal strip. The enclosure has an IP20 protection level in chassis form, which allows installation inside a ventilated cabinet while guarding against accidental contact with internal parts. Its parameter structure remains consistent within the series, so operating values are arranged in a familiar format. The control interface also uses the standard menu layout found on recent units in the same range.

Electromagnetic performance is supported by a built-in RFI Class A1/B filter, which helps the unit share cabinets with analog instrumentation. The control board uses a coated PCB to resist moisture and industrial contaminants, and series code 051 identifies the current generation. The drive uses standard cable entries for Adaptation A, while Adaptation B is set to no adaptation, so no extra gland plates are supplied. The design includes no brake chopper, so braking energy is not dissipated internally and fast deceleration requires an external solution. A local keypad is not included, so parameters are adjusted through a PC or fieldbus connection.