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The Schroff 21130391 is a stationary sub-rack component designed for 19-inch equipment mounting. It features a height of 1800 mm and a depth of 1000 mm, providing substantial vertical space for modular electronics integration. The unit includes two (2X) shelf units, identified by the model suffix 7021, which are perforated to facilitate assembly and cable management. This configuration supports high-load applications with a rated capacity of 70 kg per shelf, ensuring stability for heavy industrial or laboratory modules within standard rack enclosures.
Verify the specific shelf quantity indicated by the (2X) designation against project requirements. Confirm that the 1000 mm depth accommodates the deepest installed modules. Ensure the 1800 mm height aligns with available enclosure space. Cross-reference the 7021 suffix with official nVent SCHROFF documentation to confirm exact perforation patterns and mounting hole specifications before finalizing orders.
Select this model when permanent, non-telescopic mounting is required for heavy-duty applications. The 1800 mm height allows for extensive vertical expansion compared to standard U-height units. Consider the 70 kg load limit when calculating total system weight. Verify compatibility with existing 19-inch frame standards and ensure adequate clearance for rear cabling given the 1000 mm depth.
This part belongs to the nVent SCHROFF 21130 series, which specializes in 19-inch sub-racks and shelves. The series offers combinable and modular solutions for electronics packaging. The 21130391 variant specifically addresses high-capacity stationary needs, differing from telescopic or variable-depth models in the same family by offering fixed structural integrity for permanent installations.
No public confirmed substitute part numbers are available in the provided documentation. Direct replacement requires matching the 1800H x 1000D dimensions and the specific 7021 shelf configuration. Verify mechanical interface compatibility with existing rack frames before considering alternative manufacturers.

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