To Control The Release And Closing Of Residential, Commercial, And Public Area Seco-Larm DH-151SQ Surface-Mount Magnetic Door Holder; Holding force 33-lb (15kg); For use with door closers to control the release and closing of residential, commercial, and public area doors The UL Listed SECO-LARM Magnetic Door Holders are designed for virtually any remote door release applications, whether residential or commercial. Fail-safe operation, tri-volt coils, and adjustable armature plate allows for easy and flexible installation. Key Features For use with door closers to control the release and closing of residential, commercial, and public area doors Adjustable armature plate reduces installation time and adjusts to door alignment changes Low profile design Holding force 33-lb (15kg) 3 voltages (12/24 VAC/VDC, and 120VAC) Cast aluminum faceplate No residual magnetism for easy release Built-in voltage spike suppressor Use with SECO-LARM door closers Extension bars available: 1/2", 3/4", 1", 2" (13mm, 19mm, 25mm, 50mm) Specifications Holding Force: 33-lb (15kg) Installation: Surface-mount Operating Voltage: 12/24 VAC/VDC, 120VAC Current Draw: 52mA@12VAC, 60mA@12VDC, 27mA@24VAC, 31m@24VDC, 24mA@120VAC Magnet Dimensions: 2-3/4" x 4-9/16" x 2-1/16" (70 x 116.5 x 52 mm) Armature Dimensions: 2-9/16" x 2-9/16"x 1-9/16" (65 x 65 x 40 mm) Magnet Box Weight: 1-lb 6.4-oz (920g) Door Armature Weight: 8.1-oz (230g) For use with door closers to control the release and closing of residential, commercial, and public area doors Adjustable armature plate reduces installation time and adjusts to door alignment changes Low profile design, Holding force 33-lb (15kg), 3 voltages (12/24 VAC/VDC, and 120VAC) Cast aluminum faceplate, No residual magnetism for easy release, Built-in voltage spike suppressor Use with SECO-LARM door closers