178B6589 Danfoss
Wake Industrial LLC is not an authorized distributor of this product.
MPN: VLT6122GT4CN1STR0DLF00A30C0
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The Danfoss 178B6589 is part of the VLT 6000 HVAC Drives series and has a power rating of 90 kW or 125 HP. It uses a compact NEMA 1 enclosure and operates at a voltage range of 380 to 460 VAC. This standard HVAC drive features a local control panel display and does not include a conformal coating or RFI filter.
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Product Description:
The 178B6589 is an AC variable frequency drive manufactured by Danfoss within the VLT 6000 HVAC Drives series. Designed for fan and pump applications in building automation, the unit converts fixed-frequency, three-phase mains power into a modulated output that allows precise speed control of induction motors used in air-handling systems, chillers, and boiler feed equipment. By matching motor speed to demand, the drive supports energy conservation and helps maintain stable airflow or water circulation in commercial HVAC installations. Its variable-speed operation also reduces the need for mechanical throttling methods, such as dampers and control valves, when regulating supported equipment.
Accepting a three-phase input of 380–460 VAC, the drive can be integrated into standard industrial switchboards without an isolation transformer. Its inverter section provides a continuous motor output of 90 kW/125 HP, allowing it to regulate large air-moving or pumping equipment used in multistory buildings. The Compact NEMA 1 enclosure supports panel mounting in conditioned indoor spaces and provides basic protection against accidental contact with internal components. An integral interface equipped with an LCP (Local Control Panel) provides direct access to parameter adjustments, operating information, and fault readouts. The drive has no integrated RFI filter, so external radio-frequency interference mitigation may be necessary when sensitive instrumentation shares the same power supply.
Applications that use the Graham configuration are supported by the drive’s Graham application code, which provides settings intended for compatible HVAC control arrangements. The drive has uncoated circuit boards, so its enclosure should remain free from excessive humidity, condensation, corrosive vapors, and conductive airborne contaminants. It includes no fieldbus expansion options, which means control commands and status signals are handled through hardwired input and output connections or the local control panel. The power stage is a standard unit that uses the baseline VLT 6000 thermal protection, fuse arrangement, and gate-control assemblies. These features allow the drive to operate large fan and pump motors while providing local access to operating parameters and diagnostic information.
