Product Description:

The 167F4705 is a variable-frequency drive manufactured by Danfoss within the VLT FC 102 HVAC Drives series. It is used in ventilation, pumping, and air-handling equipment to vary motor speed so airflow or pressure matches real-time building demands instead of running the motor at constant full output. This operating approach helps reduce electrical consumption and mechanical wear in industrial and commercial automation.

The drive accepts 380 - 480 VAC and is wired for three-phase power commonly found in facility distribution panels for building systems and centralized equipment rooms. Its power electronics sit in an IP20 / chassis enclosure for protected cabinet positions, and parameter entry and fault diagnostics are handled through a detachable graphical local control panel with the Standard Language Pack for readable menu navigation. A built-in RFI filter reduces conducted emissions to meet EMC limits without extra line components, which helps simplify panel layout and input-side wiring. The unit uses series identifier 102 and is supplied without a mains option or expansion cards, keeping the configuration focused on core HVAC speed control.

The mechanical layout uses normal cabinet mounting for A, B, and C frames, which aligns the heat sink fins with forced-air paths in standard enclosures and supports common cabinet arrangements. Power and control leads pass through standard cable entries, and the B side has no adaptation, leaving cable gland selection to the panel layout. The circuit boards use an uncoated PCB, so the surrounding air should remain free of moisture and corrosive gases during operation. Dynamic braking hardware is absent because the unit has no brake chopper, so regenerative energy must be absorbed by the motor and system inertia rather than an internal braking circuit.