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The LEGRAND WPBP75-CC is a threaded closure plug designed to seal open conduit or raceway entries in electrical installations. This fitting accepts three 1/4-inch threaded connections, providing a clean, secure closure where unused knockouts or ports require capping. The plug prevents debris, moisture, and pests from entering an enclosure or conduit body. It is a standard component in commercial and residential electrical rough-in work and is typically installed by licensed electricians during panel, junction box, or conduit body finishing.
This closure plug is suited for use in conduit installations where unused threaded openings must be sealed to meet code requirements. It is appropriate for both new construction and retrofit electrical work. Applications include junction boxes, enclosures, and conduit bodies where port closure is required to maintain system integrity and comply with NEC guidelines for unused openings.
Designed as an OEM-style replacement or standard fitment for threaded conduit bodies, junction boxes, and enclosures requiring 1/4-inch threaded closure plugs.
Installation is performed by a licensed electrician. De-energize and lock out the circuit before servicing any enclosure or conduit body. Thread the plug in by hand first, then tighten with the appropriate tool to avoid cross-threading. Verify that all unused openings are properly sealed per NEC requirements before restoring power.
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