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Item #: SM4075TQW
MSRP: No Retail



3/8" Screw-Terminal Recessed-Mount Magnetic Contact

  • Used for protecting sliding doors and windows where space is limited.
  • Gold-plated terminals for longer life and reliability.
  • Screw terminals.
  • High-impact ABS plastic.
  • Miniature size assures ease of concealment.
  • Switch and magnet have ribs for securing in holes.
  • 3/8" Press-fit.
  • Contact reed switch is SPST, iridium-plated to have a high melting point and Vickers hardness, which results in higher handling power and long life.
  • For N.C. circuits.
  • 3/4" (19mm) Gap.
  • Lifetime limited warranty.


Circuit type N.C.
Operation gap 3/4", (19mm)
Color White
Material Case High-impact ABS plastic
Contact Gold-plated
Contacts Iridium-plated
Contact rating 0.1A@100VDC (max)
1.0A@10VDC (max)
10W (max)
Temperature -68º~158º F (-20º~70º C)
Switch cycles 50 Million (0.1mA@5VDC)
Switch dimensions 1-1/8"x7/16"x3/8" (28x11x9mm)
Magnet dimensions 3/4"x7/16"x3/8" (19x11x9mm)
Magnet Rare-earth neodymium


Prop 65WARNING: This product contains chemicals including Styrene which is known to the state of California to cause cancer, and Bisphenol A (BPA), which is known to the state of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

In certain instances promotional prices will be offered listed above as a “Price with Rebate”, and are typically dated. In these cases Instant Rebate (IR) pricing is good sometimes only for the day only or only for the week. In order to be eligible for IR pricing – the order must be paid for AND picked up/shipped out. If you are placing an online order outside of business hours within your respective time zone, please add a note to your order for the team to confirm the pricing, or contact the branch the following business day to ensure that the item pricing carries over into the subsequent period. If an alternate branch location is still open in another time zone, please reach out to that group.

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