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3/4" Steel Door Recessed-Mount Magnetic Contact Switch

Model Number: SM-4104-TQ/W
  • Used for steel framed doors and windows where space is limited or to avoid unsightly installations
  • Strong one-piece construction
  • Gold-plated terminals for longer life and reliability
  • Screw terminals
  • Switch and magnet have ribs for securing in holes
  • Contact reed switch is SPST, iridium-plated to have a high melting point and Vickers hardness, for higher handling power and a long life
  • 1" (25mm) Gap
  • High-impact white ABS plastic
  • Lifetime limited warranty
Loop Type Closed loop
Electrical Configuration N/O
Operation Gap 1" (25mm)
Color White
Material - Case High-impact ABS plastic
Material - Terminals Gold-plated
Contacts Iridium-plated
Contact Rating 1.0A@10VDC (max), 10W (max)
Operating Temperature -15°~160°F (-25°~70°C)
Switch Cycles 50 Million (0.1mA@5VDC)
Switch Dimensions 1-3/16" x 15/16" x 3/8" (30 x 24 x 9 mm)
Magnet Dimensions 1-3/16" x 15/16" x 1/2" (30 x 24 x 13 mm)
Magnet Type Rare-earth Neodymium alloy