131B4269 Danfoss
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MPN: FC-102P22KT4E55H2XGXXXXSXXXXAXBXCXXXXDX
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The Danfoss 131B4269 is part of the VLT FC 102 HVAC Drives series and has a power rating of 22 kW with 30 HP output. It supports three phase power on 380 to 480 VAC mains voltage and features an IP55 / Type 12 protection level. The drive comes equipped with a graphical local control panel and includes an RFI filter.
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Product Description:
The 131B4269 is an AC variable frequency drive produced by Danfoss for the VLT FC 102 HVAC Drives series. It modulates fan and pump motors so building-management systems can match the output of air handlers, cooling towers, or chillers to real-time demand without relying on mechanical throttling. In an HVAC system, the drive is installed between the mains supply and an induction motor, where it converts fixed-frequency electrical power into a pulse-width-modulated output. This controlled output adjusts shaft speed while maintaining the torque required by the connected equipment. Variable-speed operation can also reduce unnecessary motor operation when the building requires less airflow or fluid movement.
The drive provides a continuous mechanical output of 22 kW, making it suitable for midsized HVAC equipment. Its input terminals accept 380–480 VAC, allowing operation across a common industrial voltage range without an additional mains transformer. The unit operates with three-phase power, which distributes the electrical load across the incoming phases and supports stable motor operation. Its IP55 / Type 12 enclosure protects the internal electronics from dust and low-pressure water jets in mechanical rooms and similar indoor locations. Standard cable entries are positioned on the bottom plate to support orderly conduit routing and keep incoming conductors away from the front controls. The printed circuit board does not have a protective lacquer coating because the enclosure provides the required barrier against surrounding contaminants.
An integrated RFI filter reduces conducted high-frequency noise produced by drive switching and helps limit interference with nearby building-control equipment. The drive is supplied with no brake chopper, which is appropriate for fan and pump applications that generally do not require rapid dynamic braking. Local operation is handled through a graphical local control panel that displays parameter menus, operating values, alarms, and drive status without requiring separate software. The panel gives operators direct access to speed references and system information from the front of the enclosure. Building-automation controls can command the drive to vary motor speed in response to pressure, temperature, or airflow demand. The drive’s internal DC link maintains the energy needed to generate a controlled motor waveform throughout its accepted input-voltage range.
