Product Description:

The 132L4573 variable frequency drive is produced by Danfoss as part of the VLT EZ FC 321 Automation Drives series. It converts fixed-frequency three-phase input power into a modulated output for asynchronous motors, allowing controlled speed and torque in conveyors, mixers, and other automation equipment. By varying output frequency and voltage, it helps match motor behavior to process demand instead of forcing the motor to run continuously at line speed. This supports smoother starts and more flexible process control in equipment that handles changing product flow or variable mechanical loads. It can be used where a process benefits from adjustable motor speed instead of fixed full-speed operation.

The drive operates from a three-phase 380 to 500 VAC supply and delivers a motor output of 30 kW, which is approximately 40 HP. Its IP20 chassis enclosure is intended for installation inside a protected control cabinet rather than exposed mounting. This cabinet-mounted format helps protect the electronics from accidental contact in open machine areas. An integrated RFI Class A2 (C3) filter helps reduce conducted electrical noise on industrial power lines. Front-side operation is handled through a Graphical Local Control Panel that displays parameters, alarms, and trend information during setup and normal use.

For applications that require rapid deceleration, the inverter includes a brake chopper so regenerated energy can be directed to an external braking resistor. All printed circuit boards use an uncoated PCB finish, and field wiring enters through standard cable entries that suit common gland plate layouts. No add-on option modules are installed in the base configuration. The base configuration focuses on standard power conversion, braking support, and panel wiring rather than added expansion hardware. This layout suits installations that rely on the standard drive features without requiring additional communication or interface cards.