176F2126 Danfoss
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The Danfoss 176F2126 is a power card from the VLT PowerCards series with a coating for protection. It features a nominal voltage of 400 V, a power rating of 400 kW, and has a net weight of 2.5 kg with a volume of 14.079 dm³ as a printed circuit assembly.
Internal Product Review
The 176F2126 VLT PowerCard from Danfoss is a robust power card assembly designed for high-power industrial drive applications, supporting a nominal voltage of 400 V and a power rating of 400 kW. Its coated design ensures enhanced durability and protection in demanding environments. This product stands out for reliable performance in large-scale motor control systems.
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Product Description:
The 176F2126 is a power-electronics circuit card produced by Danfoss for the VLT PowerCards series. Within a multi-kilowatt VLT drive, this printed circuit board forms the power-stage interface that routes gate signals and voltage feedback between the control section and the IGBT modules. This interface supports precise speed regulation for induction or permanent-magnet motors used in industrial automation. Its placement between the control electronics and power modules allows low-level commands to operate the drive’s high-power switching components.
The assembly is compatible with converters that operate at a nominal line-to-line voltage of 400 V, and its thermal design suits drive stacks delivering up to 400 kW of mechanical output. Classified as a power card, it carries conductive tracks and shunt elements protected by a conformal coating that resists humidity and flux residue. The board has a mass of 2.5 kg, so its mounting points and supporting rails must carry this load securely. Wide copper planes carry phase current while limiting resistive losses that could otherwise increase heat within the drive. Plated-through holes route gate-drive signals to adjacent IGBT assemblies, and accessible test points support electrical measurements when diagnosing drive behavior. The card’s layout also keeps control paths organized near the switching stage, reducing the distance traveled by gate signals and voltage-feedback connections.
The unit occupies a volume of 14.079 dm³, which provides useful clearance information for storage containers and crowded equipment panels. Its European Article Number is 5710107586806, distinguishing this circuit card from other parts used in related drive assemblies. The board is supplied without auxiliary mounting hardware, so the required fasteners and supports depend on the host converter. Adequate spacing around the installed card helps maintain airflow through densely packed power sections and limits heat accumulation near dielectric materials. Protective handling is important because exposed connectors, plated contact surfaces, and mounted electronic components can be damaged by impact or electrostatic discharge. The card should remain clean and dry before installation so the coating, conductive paths, and electrical interfaces can perform as intended.
