The Schlage GF3000 mortise-mounted shear electromagnetic lock with 3,000-lb. holding force creates a fully concealed locking mechanism that connects to an access control system such as a keylock or keypad. The electromagnet installs into the top or side of the doorframe or header and the armature mounts into the top of the door or top rail. The lock can be used for both inswinging and outswinging doors and is recommended for frameless glass doors with top rail (also called herculite doors), hollow metal doors with a hollow frame, and doors with a wood frame. The locking tabs on the electromagnet hook into the armature's grooves for additional security when locked. The automatic voltage selection feature distinguishes between either a 12- or 24-VDC electrical connection and adjusts the lock automatically, eliminating the need for field adjustment when voltage changes.

The lock housing has a satin aluminum finish and has a symmetrical design that allows for both right and left hand installation. The integrated door-position switch prevents relocking before the door is back in position. The lock can be programmed with a 0- to 30-second relock delay. The magnet portion is active when connected to a power source, and it loses its magnetic hold and unlocks the door when power is removed either with a door access system such as a push-to-exit button or by power outage (also called a fail-safe design).

*H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.For more information, see the manufacturer's literature.

Electronic door locking systems use electric current to control and secure access. Entry is regulated with a door access device such as a keypad or a reader that limits entry to authorized users. Some systems can designate user access for specific hours or days and may include a keyway for mechanical override. Common electronic locking mechanisms include electromagnetic locks and electric strikes. These systems are hardwired or battery powered, which is suitable when electrical wiring is not readily available. Locks are available in cylindrical and mortise styles. A cylindrical lock requires two bored perpendicular holes in the door for installation: one in the door face and a crossbore hole in the door edge. A mortise lock fits into a pocket recess in the door edge.

Schlage Electronics, an Allegion brand, manufactures security products for commercial and residential use. Allegion is headquartered in Carmel, IN.

What's in the Box?

• Electromagnet assembly
• Armature assembly
• Mounting bracket
• Mounting hardware
• Shim plate
• Power cord