134F2978 Danfoss
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MPN: FC-360H5K5T4E20H2BXCDXXSXXXXAXBX
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The Danfoss 134F2978 is part of the VLT FC 360 Automation Drives series and features a power rating of 5.5 kW with a 7.5 horsepower output. It operates on a three-phase voltage of 380-480V AC and includes a brake chopper with a coated PCB for added protection. The drive is rated for IP20 protection and supports loadsharing with RFI Class A2 filtering.
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Product Description:
Danfoss manufactures the 134F2978 as part of the VLT FC 360 Automation Drives series. Provided as a chassis-mounted AC variable frequency drive, the unit converts three-phase mains power into regulated motor output, allowing plant control systems to adjust speed and torque without mechanical throttles. In industrial automation, this drive handles medium-power induction motors in packaging lines, pumps, and material conveyors where electronic adjustment, braking coordination, and networked load sharing are required. Its variable-frequency output supports controlled acceleration and deceleration while allowing motor operation to match changing process demands.
Rated motor output reaches 5.5 kW, which is equivalent to 7.5 HP, so the inverter is sized for midrange process motors used in fan or pump applications. It accepts a line supply of 380–480 VAC, three-phase and is designed for high-overload duty. Its current limit and thermal model permit short bursts above the nominal load without causing unnecessary trips. Dynamic stopping energy is handled by the integrated brake chopper, which directs regenerated power to an external resistor instead of returning it to the mains. Appropriate contactors, fuses, and cabling should be selected according to the drive’s electrical requirements and the connected motor load.
The chassis has an IP20 protection rating, so it is intended for installation inside a switchboard where access and contaminant ingress are controlled. Conducted emissions are mitigated by the built-in RFI Class A2 filter, allowing the drive to meet general industrial electromagnetic limits without additional external filtering hardware. The coated circuit boards are protected against moisture and airborne contaminants, helping preserve the control electronics in humid production areas. The drive supports mains load sharing, which distributes bus energy among parallel units and can reduce the demand placed on braking resistors. Standard cable entries provide conventional routing paths for power and control wiring inside the enclosure. A standard control card supports the drive’s primary command and monitoring functions, while the included language pack makes its interface accessible for routine configuration and operation.
