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Seco-Larm Enforcer Overhead Door Magnetic Contact, Closed Loop


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A Switch That Was Built To Last

The Seco-Larm Enforcer Overhead Door-Mount Magnetic Contact, Closed Loop is a contact switch designed for large doors and gates where regular contacts may be difficult to mount. The contact’s large gap allows use with even the largest doors, such as garage doors. The switch is contained in low-profile cast aluminum housing, and curved so that heavy vehicles can cross over without damaging it.

  • Closed loop contact switch
  • Use on large doors or gates
  • Magnet enclosed in round bracket
  • 24-inch wire leads enclosed in stainless-steel cable

Rugged, Long-Lasting Construction

Seco-Larm contacts have a unique rhodium plating which has gone through a special oxygen treatment to deactivate the surface, thus eliminating the absorption of organic impurities, polymer growth during operation, and the possibility of contact freezing.

The switch is housed in weatherproof die-cast aluminum constructed for surface-mounting on a garage floor. It can withstand heavy vehicle pressure without damage. The switch is safely enclosed in an epoxy compound, and a 24-inch flexible stainless-steel cable gives complete protection to the switch wiring.

The magnet is enclosed in an epoxy compound inside a round-backed aluminum housing, which mounts directly to the garage door. Its special shape discourages using the housing as a foothold when closing the door, and offers no projecting edges to catch when the door is raised.

Seco-Larm Security Products

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 for physical security, CCTV, access control, RF equipment, or vehicle security, Seco-Larm is the premier choice. Seco-Larm gives its customers such an extensive range of dependable, cost-effective security products with a full program of service and support.


  • Alarm circuit: Three-wire N.O./N.C. Contact for either closed or open circuit alarm systems
  • Reed switch: Gold under-plating with deactivated rhodium outer-plating
  • Switch housing: Weatherproof die-cast aluminum
  • Magnet: Extra-strength Alnico 5
  • Wire: 24 inches (61 cm), stainless-steel enclosure
  • Contact lifetime: 50 million cycles
  • Rating: 0.02Amp./100VDC (max.), 0.2Amp./10VDC (max.), 3W (max.)
  • Operating Temperature: -15 to 160 degrees F (-25 to 70 degrees C)
  • Dimensions: 4-3/8 x 1-3/4 x 7/16 inches (111 x 44 x 11 mm)
  • Gap: 2-3/4 inches (70 mm)
  • Listings: UL, RoHS