Schlage GF3000BRD - (Bottom Rail Door): Fully concealed shear lock intended for use when top of door is not accessible for air gap adjustment after door is hung. Armature mounts into bottom of door or bottom rail and magnet mounts into floor. Air gap adjustment is from edge of armature by screwdriver or nut driver, through an access hole. Popular application for Herculite doors.

Lock in the market. Shear Lock features a patented design offering advances over any Shear Lock in the market.

A microprocessor-based control module provides advanced electronic features. This circuitry automatically senses and adjusts input voltage, allowing for operation from 12 to 24 volt DC power sources.

The GF3000BRD(Bottom Rail Door) Shear Lock offers the advantage of a totally concealed locking mechanism providing superior security and appearance. The patented design incorporates locking “tabs” on the magnet assembly with mating grooves in the armature plate. The flexible mounting features allows for normal door and frame movement.

The Shear Lock is ideally suited for commercial grade quality hollow metal doors and frames as well as herculite doors with top rail. Advances in design provide low operating temperatures, making this Shear Lock suitable for use in the growing demand for concealed locks in wood frames.

Features and Benefits

• Automatic voltage selection 12/24 VDC (Filtered)

• 3000 lbs. of holding force

• Requires filtered, regulated power supply

• Built-in Automatic Relock Switch

• Adjustable time delay on relock, 0-30 seconds

• Low temperature operation

• Microprocessor controlled

• Optional Magnetic Bond Sensor (MBS) to monitor the secure/not secure condition of the lock

• Optional Door Status Monitor (DSM) to sense the open/closed position of the door

• UL 10C Positive Pressure Fire Tests of Door Assemblies, cUL, CSFM and MEA listed to use on fire labeled openings

• Meet ANSI/BHMA A156.23 standards

Specifications

Holding Force - 3000 lbs

Current Draw - 0.90 Amp @ 12 VDC 0.45 Amp @ 24VDC

Weight - 7 lbs

Lock Body: Length x Height x Depth - 9-1/2” x 1-1/2” x 1-1/2”

w/Mounting Tabs: Length x Height x Depth - 11-9/16” x 1-1/2” x 1-1/2”

Armature: Length x Height x Depth - 8-3/8” x 1-3/8” x 1/2”

Armature Bracket: Length x Height x Depth - 10-5/8” x 1-3/8” x 1”

Certifications - UL 10C Positive Pressure Fire Tests of Door Assemblies ANSI/BHMA A156.23 1500 lbs

Model

GF3000 Adjustable from top edge of door.

GF3000TJ Top Jamb Unit (inswinging doors) Magnet mounts on inside top jamb. Adjustable from top edge of armature.

GF3000TRD Mounting assembly which provides armature adjustable from the latch edge of the door.  Recommended with zero clearance condition between top of door and ceiling.

GF3000BRD Mounting assembly to mortise armature into bottom rail of door. Magnet is installed in floor/threshold. Provides solution when no top rail is available.

Options

DSM/MBS Door Status Monitor/Magnetic Bond Sensor

Door Status Monitor(DSM)The optional DSM provides a dry set of contacts for monitoring “door open” or “door closed” conditions.

Magnetic Bond Sensor (MBS) The optional MBS provides a dry set of contacts for monitoring “door locked” or “door unlocked” conditions. The MBS measures the magnetic holding force between the armature and the magnetic coil. Poor magnetic bond is the result of low voltage, foreign material between the surfaces of the magnetic coil and armature, or improper alignment of magnet and armature.