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The nVent SCHROFF 20848-491 is a plug-in unit module designed for standard rack mounting systems. It features a 3U height and 12HP horizontal pitch, with physical dimensions of approximately 60.62 mm in width and 128.4 mm in height. The front panel is constructed from 2.5mm thick aluminium, offering an anodized grey finish on the front and yellow chromated coating on the rear for conductivity. This component includes a plastic extractor handle finished in grey RAL 7035, facilitating secure installation and removal within equipment enclosures.
Verify exact dimensional tolerances against specific enclosure requirements before procurement. Confirm that the 12HP width aligns with the intended module spacing. Ensure the 3U height matches the available rack space. Check surface finish specifications if environmental corrosion resistance beyond standard anodizing is required. Validate compatibility with existing handle mechanisms if replacing legacy units.
Select this unit when a conductive, grounded front panel is required for shielding purposes. The 12HP width suits modules requiring moderate horizontal space. The 3U height provides sufficient vertical clearance for standard components. Consider the aluminium construction for durability and heat dissipation compared to plastic alternatives. Ensure the rack system supports the specific mounting hole pattern associated with this series.
This part belongs to the nVent SCHROFF Europac Pro plug-in unit series. These units are standardized components used to create modular front panels for various industrial and commercial applications. The series offers consistent mechanical interfaces across different heights and widths, allowing for flexible configuration of rack-mounted systems while maintaining structural integrity and aesthetic uniformity.
Direct substitutes must match the 3U height and 12HP width exactly. Verify that replacement units maintain the same mounting hole patterns and depth constraints. Ensure the substitute material meets the same conductivity and thickness requirements for proper grounding and mechanical strength.

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