Product Description:

The FC-051PK37T4E20H3XXCXXXSXXX is an AC variable-frequency drive manufactured by Danfoss for the VLT FC 51 Micro Drives series. It converts fixed three-phase line power into a controlled output so connected motors can match speed and torque to changing load demands. By varying output frequency and voltage, it helps maintain smoother motion during startup, speed changes, and steady-state operation. Intended for compact conveyors, pumps, and fans, the unit supports energy savings and reduced mechanical wear while occupying little cabinet space in industrial control panels.

The power section delivers up to 0.37 kW of continuous electrical output, which is equivalent to 0.50 HP and suits fractional-horsepower machinery. That power class is well suited to small motor-driven equipment where a larger inverter frame would be unnecessary. It is designed for a supply of 380 – 480 VAC on a three-phase network, so it can be used directly with standard industrial power in that range. An integrated RFI Class A1/B filter limits conducted emissions and helps reduce interference with nearby equipment. The configuration does not include a mains option, so internal disconnects are not present. The drive also does not include a brake chopper.

The enclosure has an IP20 / Chassis rating, so the drive is intended for installation inside a closed control panel. Wiring passes through Standard Cable Entries, which keeps the connection layout straightforward for cabinet mounting. The printed circuit boards have a Coated PCB finish that helps protect against airborne contaminants commonly found in production areas. The unit is supplied with no local control panel, so parameter access is handled through remote tools rather than an onboard keypad. This arrangement keeps the front of the unit simple and supports use in enclosed panels where settings are managed through external interfaces. It uses the latest standard software release.