We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

Safety Technology International

Safety Technology International N/C Contact Surveillance Accessory 21 32

SKU CH-PA81-V3Y6R

A normally-closed contact switch accessory for surveillance systems, measuring 1-1/2" L, 1-1/4" H, 21/32" W

  • TypeNO Switch Contact
  • Normally closed contact simplifies alarm circuit wiring
  • Compact 1-1/2" length fits tight enclosures
  • Low 21/32" width allows dense panel layouts
  • 1-1/4" height clears adjacent components easily

N/C Contact Surveillance Accessory

The Safety Technology International N/C contact is a normally closed switch accessory designed for security and surveillance installations. It provides a simple open-or-closed circuit signal that integrates with alarm panels or monitoring systems. The component is supplied new and ready for mounting in compatible enclosures or door frames.

Suits installers adding a magnetic

This accessory fits projects that require a single normally closed contact for zone wiring. It does not suit applications needing normally open operation, change-over contacts, wireless connectivity or integrated sensing technology. Buyers requiring multi-point detection or smart-home protocol support should look at alternative devices.

Highlights

  • Normally closed contact simplifies alarm circuit wiring
  • Compact 1-1/2" length fits tight enclosures
  • Low 21/32" width allows dense panel layouts
  • 1-1/4" height clears adjacent components easily

Specifications

BrandSTI
TypeNO Switch Contact

Questions about this item

What mounting hardware do I need for the 21/32" wide N/C contact?

The contact measures 1-1/2" L, 1-1/4" H, 21/32" W; use screws or brackets suited to that footprint and your surface.

Will the 21/32" wide N/C contact fit alongside my existing door-frame sensors?

At 21/32" wide it is narrower than many standard contacts, so it often fits where bulkier units cannot.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.