Hager BB1279 4-1/2X4-1/2 US15 ETW4 Electric Hinge

Hager BB1279 4-1/2X4-1/2 US15 ETW4 Electric Hinge offers a reliable solution for your door hardware needs, combining functionality with durability. This full mortise ball bearing hinge is designed for standard weight applications, measuring 4-1/2" by 4-1/2" and constructed from robust steel. The hinge features five knuckles and four wires, with a satin nickel plated clear coated finish that not only enhances its aesthetic appeal but also provides corrosion resistance. Ideal for hollow metal or wood composite doors with hollow metal frames, the BB1279 is suitable for medium frequency service, ensuring long-lasting performance. It meets or exceeds ANSI/BHMA standards, making it a trusted choice for commercial installations. Its full mortise design allows for seamless integration into the door and frame, ensuring a clean look and secure fit. The hinge is also fire rated for up to three hours, providing an essential safety feature in commercial environments. With non-removable pins, it offers enhanced security, while the power transfer capabilities accommodate various access control systems. Designed for easy installation, the Hager BB1279 is a high-quality choice for any building professional looking to enhance door functionality and security.

ELECTRIC HINGE

Full Mortise Ball Bearing Hinge, Standard Weight, 4-1/2" by 4-1/2", Steel, 5 Knuckle, 4-Wires, Satin Nickel Plated Clear Coated Finish

Ball bearing standard weight steel base hinge for use on hollow metal or wood composite doors with hollow metal frames requiring medium frequency service

There are three dimensions to know in order to determine the minimum width of the hinge: door thickness, backset, and clearance required.

Today, the Hager name is synonymous with architectural hinges. In fact, they are the industry’s premiere designer and manufacturer of architectural hinges, with a product line that offers one of the widest varieties of sizes, shapes, and finishes--all of which meet or exceed ANSI standards. 

• Hinges are manufactured in accordance with ANSI/BHMA A156.1. Self-closing hinges and pivots are in accordance with ANSI/BHMA A156.17 using three hinges per opening on a 3’0” x 7’0” x 1-3/4” (914 mm x 2134 mm x 44 mm) door. 
• Round corners are available in 1/4” (6 mm) (standard) or 5/8” (16 mm) radius.
• Full Mortise Both leaves are mortised, one leaf in the door and one leaf in the frame (wood door or hollow metal door with wood frame or hollow metal frame). Example: BB1279, 4-1/2” x 4-1/2” (114 mm x 114 mm), US26D
• Half Mortise One leaf is mortised in the door and the other is surface applied to the frame (hollow metal door with channel iron frame). Example: BB1109, 4-1/2” (114 mm), US26D
• Full Surface Both leaves are applied to the surface, one to the door and the other to the frame (metal core door or hollow metal door with channel iron frame). Example: BB2171, 5” (127 mm), USP
• Half Surface One leaf is mortised in the frame and the other is surface applied to the face of the door (wood door with wood frame or metal core door with hollow metal frame) Example: BB1163, 5” (152 mm), US26D

Resources

• Hager Commercial Hinges Cut Sheet