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BS-2031C – SPDT Normally Open. Normally Closed Alarm Contact

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This protective SPDT Surface Mount Contact monitors the opening and closure of doors and windows.
Brand: WINN
Part Number: BS-2031C

Availability: Only 49 left in stock (more on the way).

Ships Monday, February 25 if ordered within
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The position of the contacts when the coil is de-energized is used to define their state as being either Normally Open (N.O.) or Normally Close(N.C.)

This Switch contacts can be open or closed. Closed contacts can conduct current through the switch, while open contacts can not conduct current. A spring-loaded switch uses spring force to hold the contacts in one position or the other. The switch can have multiple sets of contacts, so some contacts can be NC, while others are NO on the same switch.

Alarm Contact switches are magnetic switches used to protect doors and windows for the most part. Doors are the most common place of entry and should be protected by your alarm system. The Winn Security Products always recommends contacting every perimeter door in your home or business.

  • Surface Mount Magnetic Contacts
  • Miniature size perfect for homes and offices

Gap: ¼" - 1"
Contact State: Normally closed or NC until contacts are separated.
Dimensions: 2 ½" x ¾" x ¾"

Additional Info

Additional Info

Brand WINN
Part Number BS-2031C
What's in the box (1) BS-2031C – SPDT Normally Open. Normally Closed Alarm Contact


Save your moneyReview by Dennis
Ordered these contacts as replacements when I replaced my front door. Much bigger then I thought :-{ (Posted on 5/24/15)
Works better than expectedReview by Russel
Excellent product for a hard wired alarm system. It took me less than 5 minutes to hook it up and it worked perfectly. (Posted on 3/12/15)

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