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Reed Switch Set, Open Loop, 3/4" Steel Door Recessed Magnetic Switch w/ Cable Leads - 10 Pack

by GRI
SKU: 185-12-W
Size & Diameter in Inches
Various lead times may apply to this product. Please contact us for more details.
Made in the USA UL Compliant

These items are Build to Order and Non-Returnable


Reed Switch Set, Open Loop, Steel Door Recessed 3/4" Magnetic Switch w/ Cable Leads - 10 Pack (White)

This recessed "normal open" style magnetic reed switch with standard #22AWG leads has a 3/4" diameter. It was designed for residential, commercial and industrial steel doors and frames. The shorter length and the introduction of PC board type terminals makes the installation of the set quick and simple with no soldering, B connectors or tape to catch during installation or removal, reducing the cost of installation and creating greater profitability.

Note: Open Loop or "normal open" means the switch is open when magnet is in close proximity.


  • Recessed Magnetic Contact
  • 12", 36" Or 72" #22AWG Leads
  • Multiple Gap Sizes Available
  • 3/4" Diameter
  • Self-Locking
  • Solid, One Piece Design
  • UL and ULC Approved
  • UL 10C Fire Rated
  • Open Loop
  • Made In U.S.A.
  • Color: White


Technical Specs:

Loop Type: Open
Electrical Config: N/C
Reed Form: B
Maximum Intitial Contact Resistance (Ω): .140
Maximum Contact Rating (W): 5
Maximum Switching Voltage (VDC): 175
Maximum Switching Current (A): .250
Standard Gap: Up To 1/2" On Steel*
Wide Gap: 3/4" + On Steel*
*Gaps will increase substantially for installations other than steel. Gaps up to one inch on steel possible when paired with our Item#: AL-GRI-4654 Door Channel Magnet

What's in the box

  • 10 x Magnetic Recessed Switch Sets (Switches + Magnets)