Middle Atlantic 1045B Abandon Plate Assembly 3-1/2 In

Overview

The Middle Atlantic 1045B is a brass blanking plate designed to cap unused 3-1/2-inch service fitting openings in in-floor raceway and service fitting systems. When a floor box or in-floor service outlet is decommissioned or a port goes unused, an open cavity is a code compliance issue and a physical hazard — the 1045B seals it cleanly without leaving a gap in the finished floor surface. The brass finish integrates with commercial flooring environments where metal hardware is standard. TAA compliant, making it a straightforward choice for government and federally funded projects that enforce Trade Agreements Act sourcing requirements.

Compatibility

Designed for the Middle Atlantic 1045/525 series in-floor service fitting product family. Fits 3-1/2-inch service fitting openings within that series. Verify the specific floor box or fitting model in your installation against the 1045/525 series compatibility matrix before ordering — the 1045B is sized for the 3-1/2-inch port, not the full range of opening sizes in the broader in-floor line.