Seco-Larm DH-151SQ Magnetic Door Holder w/BackBox Surface Mnt Holds 33LBS/15KG

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. 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 Optional extension bars available: 3/4″, 1″, 4″, 7″ (19mm, 25mm, 102mm, 178mm) Use with SECO-LARM door closers SD-C121-S, SD-C131-SQ, SD-C101-SGQ, or SD-C101-SBAQ