Authorized Seco-Larm Reseller

Seco-Larm SM-4201-LQ Track-Mount Overhead Door Magnetic Contact, 3″ (76mm) Gap, Closed loop

Seco-LarmSKU: SM-4201-LQ

Sale price$17.59
Usually ships within 3-5 business days

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  • 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
  • 36″ (91cm) Wire leads enclosed in armored cable
  • Contact Type: SPST, iridium-plated to have a high melting point and Vickers hardness for higher power handling and longer expected life
  • For closed loop circuits
  • 3″ (76mm) Gap
  • IP65 Weatherproof
  • Mounting bracket included
  • Lifetime limited warranty



Loop Type Closed Loop
Operation Gap 3″ (76mm)
Material – Case Aluminum
Material – Terminals 36″ (91cm) armored leads
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 3-1/8″x2-5/8″x1-13/16″ (79x66x46 mm)
Magnet Dimensions 3-1/4″x3-9/16″x1-3/4″ (82x90x44 mm)
Magnet Type Ferrite
IP Rating Weatherproof IP65

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