Product Description:

The 131X6538 variable frequency drive is produced by Danfoss within the VLT FC 102 HVAC Drives series. It belongs to the VLT HVAC Drive product group and uses the 102 internal identifier found across the platform. This AC inverter is installed in building automation panels to regulate induction motor speed in air-handling units, pumps, and chillers, allowing control systems to match motor output to changing load demands.

The rated motor output is 30 HP, which is equivalent to 22 kW. The input stage accepts a mains supply of 380 to 480 VAC, and the power section uses three-phase power for connection to typical industrial supplies. The normal A-, B-, or C-frame arrangement supports cabinet installation, while the IP20 protection rating prevents fingers and large objects from contacting live parts when the unit is mounted inside an enclosure. An integrated RFI filter reduces conducted electrical noise, helping the drive operate on shared distribution networks without exceeding applicable emission limits. These electrical characteristics support variable-speed operation in HVAC systems where motors frequently run below their maximum output.

User interaction is provided through the Graphical Local Control Panel, which offers parameter access and real-time operating readouts without external tools. In multi-drive systems, the dedicated mains option supports load sharing, enabling connected inverters to distribute power through a common DC bus. The drive has uncoated printed circuit boards, so it should be installed in a clean, temperature-controlled cabinet that protects the electronics from moisture and airborne contaminants. A brake chopper is not included, so external energy dissipation equipment is required if the application produces regenerative energy during rapid deceleration. Safe-stop functionality is also omitted, which means any required safety function must be provided through suitable external equipment.