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Seco-Larm
Overhead Door Magnetic Contacts, Wide Gap UL Listed

Model[SM-226RQ]


2-3/4" (70mm) Gap, N.C., UL Listed

  • Used for overhead doors in both industrial and residential situations where a wide gap is present.
  • Adjustable to fit most door-channel widths.
  • Switch contained in curved low-profile cast-aluminum housing for surface mounting on garage floor.
  • Magnet enclosed in epoxy compound inside aluminum case for direct installation to garage door with no projecting bracket to break or serve as a handle.
  • 24" (61cm) wire leads enclosed in armored cable.
  • Contact reed switch is SPST, deactivated rhodium on gold under-plating, which results in a long life.
  • For N.C. Circuits (SM-226RQ).
  • For NO/NC Circuits (SM-226R-3Q).
  • 2-3/4" (70mm) Gap.
  • Lifetime limited warranty.
Model numberSM-226RQSM-226R-3Q
Circuit typeN.C.NO/NC
Operation gap2-3/4", (70mm)
MaterialSwitchHeavy-duty cast-aluminum case
Terminal24" (61cm) armored leads
MagnetEnclosed in epoxy in aluminum housing
ContactsDeactivated rhodium on gold under-plating
Contact rating0.1A@100VDC (max)0.02A@100VDC (max)
1.0A@10VDC (max)0.2A@10VDC (max)
10W (max)3W (max)
Temperature-15º~+160º F (-25º~70º C)
Switch cycles50 Million (0.1mA@5VDC)
Switch dimensions4-11/32"x1-3/4"x27/64" (110x44x11mm)
Magnet dimensions3-35/64"x1-5/16"x1-27/64" (90x33x37mm)
MagnetAlnico 5

Download Data Sheet HERE


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