Product Description:

The 131F5458 is a variable frequency drive manufactured by Danfoss for the VLT FC 102 HVAC Drives series. It controls centrifugal fans, pumps, and other air-handling or hydronic loads by converting fixed mains power into variable-frequency, variable-voltage output. This control allows a building automation system to adjust motor speed in response to real-time demand, which can reduce unnecessary energy use and mechanical stress in heating, ventilation, and air-conditioning equipment. Its application-focused design supports speed regulation in systems where airflow, pressure, or fluid circulation changes throughout the operating cycle.

The drive accepts a mains supply of 200–240 VAC and is designed for three-phase power, providing balanced loading across the supply conductors. Its IP20 chassis enclosure protects against accidental finger contact with hazardous internal parts, but the drive requires installation in a clean control cabinet because the chassis is not sealed against dust or water. Panel installation uses standard cabinet mounting for A, B, and C frames, allowing the heat sink and mounting points to align with compatible cabinet layouts. A built-in RFI filter reduces conducted electrical interference that could otherwise affect nearby equipment or the supply network. The graphical local control panel provides direct access to operating data and adjustable parameters from the front of the unit. Because the drive has no integrated mains disconnect option, upstream switchgear must provide a suitable means of electrical isolation.

The housing uses standard cable entries to route mains, motor, and control wiring into the drive without specialized entry hardware. The unit has no brake chopper, so it cannot internally dissipate regenerative energy through a braking resistor; applications with overhauling loads may require external braking equipment. Its printed circuit boards are not coated, making protection from humidity, conductive dust, and corrosive airborne contaminants important. The A, B, and D option slots are not populated, so communication, feedback, or application functions that depend on expansion cards are not included. C0 and C1 harmonic filters are also absent, leaving any required harmonic mitigation to suitable upstream equipment. These installation conditions should be considered when selecting the cabinet, protective devices, and supporting electrical components for the drive.