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The McKinney T4A3786-4-1/2x4-US26D-QC12 is an electrified full mortise heavy weight bearing hinge built for high-traffic openings that require power transfer through the door. Measuring 4-1/2" x 4" with a five knuckle design and square corners, this hinge carries twelve concealed wires terminated with a Quick Connect (QC12) plug for fast, tool-free electrical connections during installation. Finished in 626 Satin Chrome, it delivers reliable performance for access control, monitoring, and electrified locking applications. The heavy weight bearing construction supports demanding doors, making it a dependable choice for commercial and institutional entrances where durability and electrical continuity matter.
Features
Functional Details
The electrified hinge routes concealed wires through the barrel to provide a continuous electrical path between the door and frame, allowing power and signal to reach devices mounted on the door. The Quick Connect system uses a factory-installed plug that mates with the corresponding connector, reducing installation time and eliminating field splicing.
| Manufacturer | McKinney |
|---|---|
| SKU | T4A3786-4-1/2x4-QC12 |
| Grade | Heavy Weight |
| Bearing Type | Ball Bearing |
| Hinge Type | Full Mortise, Electrified |
| Knuckle Configuration | Five Knuckle |
| Corner Type | Square Corner |
| Finish | 626 Satin Chrome |
| Origin | USA |
| Unit of Measure | Each |
| BAA Qualified | Yes |
| Limited Warranty | Yes |
| Hinge Height | 4-1/2" |
|---|---|
| Hinge Width | 4" |
| Number of Wires | 12 |
| Electrical Connection | Quick Connect (QC12) |
| Weight Classification | Heavy Weight |
| Knuckle Count | 5 |
| Bearing Count | 4 (Heavy Weight) |
| Material | Steel |
| Corner Radius | Square |
| Mounting | Full Mortise |
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