Middle Atlantic ALA-ABRT RT Series AB Cover Plate

Overview

The Middle Atlantic ALA-ABRT is a blank cover plate designed to close off unused AB (alarm/blank) positions in Middle Atlantic RT Series rack enclosures. Open panel slots create airflow bypasses that short-circuit front-to-rear cooling paths and accumulate dust inside the rack cabinet — fitting the ALA-ABRT eliminates both problems without requiring additional hardware. It also delivers a clean, finished appearance in client-facing installations where an open rack bay is not acceptable.

Compatibility

The ALA-ABRT is designed for the Middle Atlantic Middle Atlantic RT Series rack line, specifically the AB alarm/blank accessory positions within that enclosure family. If you are sourcing cover plates for a different Middle Atlantic rack series — such as the BGR, PTRK, or WM families — verify the slot format before ordering, as cover plate form factors are not universal across the rack enclosure lineup. Consult the RT Series rack documentation to confirm the AB slot count and panel dimensions for your specific chassis before purchasing multiples.