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Seco-Larm Enforcer Overhead Door Magnetic Contact, Closed Loop


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WARNING: Cancer and Reproductive Harm –


Heavy-Duty Contact For Overhead Doors

The Seco-Larm Enforcer Overhead Door-Mount Magnetic Contact (Closed Loop) is designed to monitor the open/closed status of an overhead garage door or screen. The contact switch is protected by curved low-profile cast aluminum housing, which anchors to the floor. Because the Seco-Larm magnetic contact’s wire leads are also protected inside a stainless-steel cable, vehicles can run over the unit without causing damage.

  • Low-profile cast aluminum housing anchors to the floor
  • Gray ABS case protects magnet mounted on L-shaped bracket
  • 24" (61cm) wire leads enclosed in armored cable
  • Used in closed-loop circuit applications
  • IP66 – Epoxy sealed switch for weatherproof installation 

Building A Secure Future Since 1971

So many places and things to protect; so many ways to protect them; one partner: Seco-Larm. Under the Enforcer trademark, Home Controls offers an impressive line of Seco-Larm security products, ranging from simple switches to some of the most sophisticated alarm devices. Whether it’s physical security, CCTV, access control, RF equipment, or vehicle security, Seco-Larm is the premier choice. Seco-Larm gives its customers an extensive range of dependable, cost-effective security products with a full program of service and support.


  • Manufacturer Part #: SM-226LQ
  • IP Rating IP66 - Epoxy sealed
  • Operating Voltage: 12~24 VDC
  • Loop Type: Closed-loop
  • Electrical Configuration: NO (SPDT)
  • Operation Gap: 2-3/4", (70mm)
  • Material Magnet: ABS plastic on L-bracket
  • Material Switch: Heavy-duty cast-aluminum case
  • Material Terminals: 24" (61cm) armored leads
  • Contacts: Deactivated rhodium on gold under-plating
  • Contact Rating: 0.2A@10VDC (max), 3W (max)
  • Operating Temperature: -15 to 160 degrees F (-25 to 70 degrees C)
  • Switch Cycles: 50 Million (0.1mA@5VDC)
  • Switch Dimensions: 4-5/16 x 1-3/4 x 7/16 inches (110x44x11mm)
  • Magnet Dimensions: 3-15/16 x 2 x 2 inches (100x51x51mm)
  • Magnet Type: Alnico 5
  • Approvals: UL, RoHS
  • Warranty: Lifetime Limited