Product Description:

The 131B4636 variable frequency drive is produced by Danfoss for the VLT FC 302 Automation Drives series. The unit belongs to the VLT AutomationDrive FC product group and is designed for distributed or cabinet-mounted control systems, where it converts fixed-frequency utility power into a variable-frequency output for AC induction motors used in industrial automation. By adjusting motor frequency and voltage, the drive allows pumps, fans, conveyors, and similar equipment to match changing process demands while reducing unnecessary electrical consumption and mechanical stress. Its speed-control capability also supports gradual acceleration and deceleration, which can reduce abrupt loading on motors, couplings, belts, and connected machinery.

The drive delivers 4.0 kW of continuous power for normal operation. The same power rating is expressed as 5.0 HP for applications that use horsepower when selecting motors and drive equipment. The input section accepts 380–500 VAC, permitting direct connection to common industrial power systems within that voltage range. It uses three-phase power, which distributes the electrical load across the incoming phases and supports stable operation of compatible industrial motors. An integrated RFI Class A1/B (C1) filter attenuates conducted electrical emissions that could otherwise affect nearby equipment. The drive does not include a mains option or a brake chopper, making it suitable for standard speed-control applications that do not require those added functions.

The drive is operated through a graphical local control panel, which provides access to operating status, commands, and adjustable parameters at the enclosure. Clear menu navigation helps users review drive conditions and modify supported settings without relying exclusively on an external controller. Power and control conductors enter through standard cable glands, providing conventional routing points for installation wiring. The unit contains uncoated printed circuit boards, so it should be installed in a clean, dry enclosure that limits exposure to moisture, conductive dust, corrosive vapors, and other airborne contaminants. A standard language pack presents menus in commonly used industrial languages, allowing the displayed controls and operating information to be read in the selected language. The configuration does not include application-specific adaptation software, leaving the drive prepared for general motor-control tasks supported by its standard functions.