Product Description:

The 134F2983 is an AC variable frequency drive produced by Danfoss as part of the VLT FC 360 Automation Drives series. The product converts fixed utility power into a synthesized output that controls the speed of three-phase induction motors used in material handling, ventilation, and general machinery. By replacing mechanical throttling with electronic control, the drive supports tighter process accuracy and reduced energy consumption in industrial automation. It is supplied as a chassis-mount unit that integrates into standard control enclosures. Its variable-frequency output allows connected motors to operate at speeds that match changing process demands rather than continuously running at full speed.

Rated at 30 HP, the inverter can deliver up to 22 kW of continuous shaft power when connected to a three-phase supply between 380–480 VAC. This voltage range covers common 400 V and 480 V networks, eliminating the need for external transformers in compatible installations. The design supports high-overload operation, so the output stage tolerates elevated current for short intervals during acceleration or process upsets. Its chassis form factor has an IP20 protection rating, allowing placement inside a ventilated cabinet while protecting against accidental contact with live parts. Thermal and control functions are coordinated by the standard control card, and cables are routed through the standard entries provided for this series. Adequate cabinet airflow must be maintained so heat from the power electronics can dissipate during continuous operation.

Dynamic stopping energy is routed through an integrated brake chopper, protecting the DC link when the motor decelerates rapidly. For installations that connect multiple drives to a common bus, the mains option supports load sharing, allowing regenerative energy to be redistributed instead of dissipated as heat. The control electronics are mounted on a coated printed circuit board, which protects the circuitry from dust and moisture commonly found in industrial panels. Radio-frequency emissions are limited by the embedded RFI Class A2 filter, helping the installation comply with industrial electromagnetic compatibility limits without requiring a separate RFI filter. The brake chopper also permits connection to suitable braking components when rapid deceleration produces more regenerative energy than the system can immediately reuse.