Product Description:

The FC-301PK37T4Z20H3TG is an AC variable-frequency drive manufactured by Danfoss for the VLT FC 301 Automation Drives series. It synthesizes a variable output frequency from a constant mains source. This lets plant controllers adjust induction-motor speed and torque in conveyors, pumps, and other motion axes used in industrial automation. It can be used where simple speed changes and stable low-power motor control are needed during routine machine operation.

Rated continuous power is 0.37 kW, so the inverter can supply that load without derating. The input bridge accommodates 380 – 480 VAC, allowing direct connection to common three-phase distribution networks. The drive is built for three-phase power, so it produces symmetrical phase currents that help limit motor vibration and improve efficiency. Conducted emissions are attenuated by the factory-installed integrated EMC filter, reducing the need for external line chokes in most cabinets. The IP20 enclosure blocks solid objects larger than 12.5 mm, while ventilation slots remain open for convection cooling inside protected electrical rooms. This arrangement suits indoor cabinet installation where the drive is protected from direct contact and airborne debris.

The mechanical output limit of 0.50 HP makes the unit suitable for fractional-horsepower applications where precise speed regulation is still required. A graphical local control panel on the front provides access to parameters, real-time readouts, and local start-stop control without a laptop. Local access is useful when operating status or settings need to be checked at the cabinet. For safety circuits, the drive includes Safe Stop, which removes motor power when an emergency input is triggered. It is part of the VLT AutomationDrive FC product group.