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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: 1/2", 3/4", 1", 2", 3", 4", 5", 6", 7" (13mm, 19mm, 25mm, 50mm, 76mm, 102mm, 127mm, 152mm, 178mm)
Item#:
DH-171SQ
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Extension bar for the SECO-LARM DH-171SQ Flush-mount Magnetic Door Holder and DH-151SQ Surface-mount Magnetic Door Holder. 
Item#:
DH-100E-40SQ
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Item#:
PS-GR12
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Extension bar for the SECO-LARM DH-171SQ Flush-mount Magnetic Door Holder and DH-151SQ Surface-mount Magnetic Door Holder. 
Item#:
DH-100E-07SQ
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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: 1/2", 3/4", 1", 2", 3", 4", 5", 6", 7" (13mm, 19mm, 25mm, 50mm, 76mm, 102mm, 127mm, 152mm, 178mm)
Item#:
DH-151SQ
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Extension bar for the SECO-LARM DH-171SQ Flush-mount Magnetic Door Holder and DH-151SQ Surface-mount Magnetic Door Holder. 
Item#:
DH-100E-10SQ
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