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Overhead Door Magnetic Contacts, Wide Gap

Model Number: SM-226R-3Q
  • 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 has deactivated rhodium on gold under plating for a longer expected life
  • For open/closed loop circuits 
  • 2-3/4″ (70mm) Gap
  • IP68 – Epoxy sealed
  • Lifetime limited warranty 
IP Rating IP68 - Epoxy sealed
Loop Type Open/closed loop
Electrical Configuration NO/NC/COM (SPDT)
Operation Gap 2-3/4", (70mm)
Material - Magnet Enclosed in epoxy in aluminum housing
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 -15º~160º F (-25º~70º C)
Switch Cycles 50 Million (0.1mA@5VDC)
Switch Dimensions 4-11/32" x 1-3/4" x 27/64" (110 x 44 x 11 mm)
Magnet Dimensions 3-35/64" x 1-5/16" x 1-27/64" (90 x 33 x 37 mm)
Magnet Type Alnico 5