178B4811 Danfoss
Wake Industrial LLC is not an authorized distributor of this product.
MPN: VLT6102GT4CN1STR0DLF00A00C0
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The Danfoss 178B4811 is part of the VLT 6000 HVAC Drives series and features a compact NEMA 1 enclosure. This drive offers a power rating of 75 kW or 100 HP and operates at a voltage range of 380 to 460 VAC. It comes with an LCP display for local control and is supplied as a standard unit without conformal coating or RFI filter.
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Product Description:
Danfoss manufactures the 178B4811 as part of the VLT 6000 HVAC Drives series for controlling fan, pump, and compressor motors in building automation systems. The drive adjusts motor speed to maintain the required airflow or water flow as operating demand changes. This variable-speed control can reduce energy consumption while helping air-handling units, pumping systems, and chillers maintain stable process setpoints.
The power section is rated at 75 kW / 100 HP, allowing the drive to operate large induction motors used in central mechanical systems. It accepts a three-phase supply ranging from 380-460 VAC, making it compatible with electrical distribution systems that operate within this voltage range. The Compact NEMA 1 enclosure provides basic protection against accidental contact with internal components and is intended for installation in a suitable indoor control area. Its compact construction also helps limit the amount of panel space required while providing organized access for power and control wiring. Parameters can be entered through the integrated Local Control Panel, which provides direct access to drive settings and operating information without requiring separate programming equipment. The unit is supplied without an RFI filter, so external electromagnetic compatibility measures may be required when sensitive instrumentation shares the electrical system.
The drive uses standard unit hardware that follows the baseline construction used for this product series. It has no conformal coating over the electronic assemblies, so installation areas should be kept free from excessive humidity, condensation, and corrosive airborne contaminants. The design includes no fieldbus option, which means supervisory commands and status signals must use the available analog connections, digital inputs, or relay contacts. A building management system can use these conventional control points to issue speed references, monitor operating conditions, and coordinate the drive with other HVAC equipment. The Graham control macro provides a predefined group of control settings with PID defaults intended for supply-fan pressure regulation. Additional functions such as fire mode or bypass control are not integrated into this configuration and must be provided through separate control equipment when the application requires them.
