Seco-Larm DH-171SQ Flush-Mount Magnetic Door Holder; Holding force 33-lb (15kg); Hard Wired Electric Operation

★★★★★ 4.4 140 reviews

$54.46
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Management number 208535476 Release Date 2026/03/22 List Price $21.78 Model Number 208535476
Category

Designed for use with a UL-listed Seco-Larm door closer (sold separately), the Seco-Larm Magnetic Door Holder allows you to remotely control the release and closing of the door. Keep your door open all day with the door holder making sure it stays open, then when you're ready to close up, activate the door closer and the door holder will automatically release at the same time.The unit consists of two main components: 1) the electrified magnetic door holder that mounts to the wall behind your door, and 2) the armature plate that mounts onto the inside of your door in alignment with the magnet. When the door is opened all the way, the metal plate on the door is attracted to the electrified magnet on the wall, holding the door open.Used with Seco-Larm door closers to control door release and closingProvides 33 pounds of electromagnetic holding force (15kg)No residual magnetism allows easy release; fail-safe operationLow profile design with cast aluminum faceplate3 voltages: 12/24 VAC/VDC, and 120VACBuilt-in voltage spike suppressorTwo models are available. Choose between a magnetic door holder that surface-mounts onto the wall or one that flush-mounts into the wall. Both models come with all the mounting hardware you need. The armature plate is adjustable to make installation easy on any door and also adjusts to accommodate post-installation alignment changes. The unit features tri-volt coils (12/24 VAC/VDC, and 120VAC) and a built-in spike suppressor.The unit works with any Ul-listed Seco-Larm door closers. It also optionally works with Seco-Larm extension bars: 1/2", 3/4", 1", 2", 3", 4", 5", 6", 7" (13mm, 19mm, 25mm, 50mm, 76mm, 102mm, 127mm, 152mm, 178mm).ContentsMagnetic Door HolderArmature PlateBack Box (DH-151SQ Surface-Mount model only)(2) #10x11/4" Wood Screws(4) 4x8 Machine Screws(2) 3x10 Machine Screws(2) 5x15 Machine Screws(2) JumpersInstruction ManualNOTE: Requires a Seco-Larm door closer, sold separately.Technical DetailsManufacturer Part #: DH-171SQUPC: 676544017493Type: Flush-MountOperating Voltage: 12/24 VAC/VDC, 120VACCurrent Draw:52mA at 12VAC, 60mA at 12VDC27mA at 24VAC, 31m at 24VDC24mA at 120VACHolding Force: 33 pounds (15kg)Magnet Dimensions: 2-3/4 x 4-9/16 x 2-1/16 inches (70 x 116.5 x 52 mm)Armature Dimensions: 2-9/16 x 2-9/16 x 1-9/16 inches (65 x 65 x 40 mm)Magnet Box Weight: 1 pound 1.5 ounces (496g)Door Armature Weight: 8.1 ounces (230g)Approvals: UL, CE, RoHSWarranty: 2 Years

  • Used with Seco-Larm door closers to control door release and closing
  • Provides 33 pounds of electromagnetic holding force (15kg)
  • No residual magnetism allows easy release; fail-safe operation
  • 3 voltages: 12/24 VAC/VDC, and 120VAC
  • Installation Type: Flush-Mount
  • Used with Seco-Larm door closers to control door release and closing
  • Provides 33 pounds of electromagnetic holding force (15kg)
  • No residual magnetism allows easy release; fail-safe operation
  • 3 voltages: 12/24 VAC/VDC, and 120VAC
  • Installation Type: Flush-Mount
UPC 676544017493
Size Pack of 1
Item Weight 1.09 pounds
Part Number DH-171SQ
Manufacturer Seco-Larm
Installation Type Flush-mount
Item model number DH-171SQ
Specification Met UL
Batteries Included No
Batteries Required No
Package Dimensions 8.07 x 5.12 x 3.31 inches
Warranty Description 2 Years
Item Package Quantity 1
Is Discontinued By Manufacturer No

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