178B2003 Danfoss
Wake Industrial LLC is not an authorized distributor of this product.
MPN: VLT6002HT4B20STR3D0F00A00C0
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The Danfoss 178B2003 is an HVAC drive from the VLT 6000 HVAC Drives series with a power rating of 1.1 kW or 1.5 HP. This standard unit features a bookstyle IP20 enclosure, operates at 380-460 VAC, and includes Class A1 and B RFI filters. The drive does not come with a Local Control Panel or conformal coating.
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Product Description:
The 178B2003 is a variable-frequency drive engineered by Danfoss for the VLT 6000 HVAC Drives series. Intended for automated air-handling systems, chilled-water pumps, and exhaust fan assemblies, the unit modulates induction motor speed so building systems can match real-time thermal loads while lowering energy consumption. Within an automation cabinet, it acts as the power stage that receives run commands from a building management system or PLC and converts fixed-frequency mains power into a regulated three-phase waveform for the connected motor.
It accepts a three-phase input of 380–460 VAC, a range that aligns with common industrial distribution levels and removes the need for step-up transformers. The inverter can deliver up to 1.1 kW (1.5 HP) of continuous mechanical output, making it suitable for fractional-horsepower blowers or secondary circulation pumps. Mechanical integration is simplified by the slim book-style IP20 housing, which fits beside other drives while providing finger-safe protection against contact with internal components. Conducted emissions are reduced by the integrated Class A1 and B filter, allowing installation on residential and industrial power systems without an external filter. The front fascia is supplied without an LCP, so parameter adjustments require remote software or a compatible plug-in control panel when local access is needed.
The drive is intended for HVAC applications and supports thermal-management functions such as reducing fan speed during periods of partial load. These functions allow connected equipment to respond to changing airflow or circulation demands without continuously operating at full speed. The electronics are configured as a standard unit, using the baseline power components and protective features available for this model range. The drive has uncoated circuit boards, making it suitable for normal indoor installations where condensation and corrosive airborne contaminants are not expected. Its communication slot is vacant, so communication hardware can be selected separately when connection to a specific fieldbus network is required. Compatible clip-on accessories may be added later if the control system requires additional communication or interface capabilities.
