FC-101P11KT4E20H4XXCXXXS Danfoss
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The Danfoss FC-101P11KT4E20H4XXCXXXS is part of the VLT FC 101 HVAC Basic Drives series. This three-phase HVAC drive offers a power rating of 11 kW (15 HP) and operates at 380 to 480 VAC. It features an IP20 chassis protection level with a coated PCB and comes with an RFI class A1 (C2) filter.
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Product Description:
The FC-101P11KT4E20H4XXCXXXS is an AC variable-frequency drive produced by Danfoss for the VLT FC 101 HVAC Basic Drives series. It converts fixed-frequency mains power into a modulated output that allows building automation systems to vary the speed of centrifugal fans, pumps, and compressors so airflow and fluid volume match real-time demand. Integrated speed control helps reduce energy consumption and mechanical wear in air-handling units, chilled-water loops, and similar HVAC installations. Built-in electromagnetic compatibility filtering also limits electrical interference with other equipment connected to the facility’s power network.
The inverter delivers a continuous output of 11 kW, equivalent to 15 HP, so it can drive medium-sized induction motors commonly used in rooftop or mechanical-room equipment. It accepts a supply range of 380–480 VAC and is intended for three-phase networks, eliminating the need for external transformers in most compatible commercial facilities. An internal filter rated to RFI class A1 (C2) attenuates conducted emissions, helping the installation meet common electromagnetic compatibility requirements for commercial buildings. The IP20 chassis allows mounting inside a protected electrical cabinet where barriers prevent accidental contact with internal components. Its variable-frequency output supports controlled acceleration and deceleration, reducing abrupt mechanical loading on connected fans, pumps, and compressors.
The control electronics are protected by a coated PCB that resists airborne moisture and contaminants found in return-air plenums and mechanical spaces. Wiring is routed through standard cable entries, providing a straightforward path for power and control conductors during cabinet installation. The drive has no brake chopper, making it suitable for applications that rely on natural deceleration or mechanical inertia rather than dynamic braking hardware. Local operation is unavailable because the unit does not include an LCP, so commands must originate from a remote HVAC controller through terminal inputs or a compatible fieldbus module. This remote-control arrangement allows the building automation system to adjust motor speed in response to pressure, temperature, flow, or occupancy signals.
