Track-Mount Overhead Door Magnetic Contact Switch

PN/ SEC-SM-4201-LQ*

Track-Mount Overhead Door Magnetic Contact Switch


  • Used for overhead doors in both industrial and residential situations where a wide gap is present
  • Adjustable to fit most door-channel widths
  • Rugged aluminum housing
  • Contact Type: SPST, iridium-plated to have a high melting point and Vickers hardness, which results in higher handling power and long life
  • Mounting bracket included
  • 36" (91cm) wire leads enclosed in armored cable
  • 3" (76mm) Gap
  • Lifetime limited warranty


Loop Type N.C.
Operation Gap 3" (76mm)
Material - Case Aluminum
Material - Terminals 36" (91cm) armored leads
Contacts Iridium-plated
Contact Rating 0.1A@100VDC (max), 1.0A@10VDC (max), 10W (max)
Operating Temperature -15°~160°F (-25°~70°C)
Switch Cycles 50 Million (0.1mA@5VDC)
Switch Dimensions 3-7/64" x 2-19/32" x 1-13/16" (79 x 66 x 46 mm)
Magnet Dimensions 3-7/32" x 3-17/32" x 1-3/4" (82 x 90 x 44 mm)
Magnet Type Ferrite