Authorized Seco-Larm Reseller

Seco-Larm SM-4103-LQ/W 3/8″ Rare-Earth Recessed-Mount Magnetic Contact Switch – White, 1/2″ (12mm) Gap, Closed loop, UL Listed, Pack of 10

Seco-LarmSKU: SM-4103-LQ/W

Sale price$17.40
Usually ships within 3-5 business days

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  • Used for protecting sliding doors and windows where space is limited
  • Rare-earth magnet with nickel plating to protect against chipping and corrosion
  • Contact reed switch is SPST, ruthenium on gold under-plating, for a long life
  • High-impact ABS plastic
  • Miniature size assures ease of concealment
  • Switch and magnet have ribs for securing in holes
  • 1/2″ (13mm) Gap, white, with 18″ (46cm) Leads and 9/16″ (14.5mm) switch
  • 3/8″ Press-fit with stubby 9/16″ switch
  • Lifetime limited warranty
  • Pack of 10



Loop Type Closed loop
Electrical Configuration N/0
Operation Gap 1/2″ (13mm)
Color White
Material – Case High-impact ABS plastic
Material – Terminals 18″ (46cm) leads
Contacts Ruthenium on gold underplating
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 9/16″ x 7/16″ x 3/8″ (14.5 x 11 x 9 mm)
Magnet Type Rare-earth Neodymium alloy

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