MCM Electronics

Overhead Door Alarm Switch (NO Contact for closed circuit systems)MCM Part #: 82-13986  |  Seco-larm Part #: SM-226RQ

Overhead Door Alarm Switch (NO Contact for closed circuit systems) 4.5 stars from 1 review.
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Use this heavy-duty magnetic Garage Door Contact Switch on garage doors, roll-up doors and other doors or gates where it may be difficult to mount regular magnetic contacts. Smaller magnetic switches have a small operating gap where the contact and magnet must be within half an inch for reliable operation. While those switches are fine for most doors and windows in a home, they just won't cut it for larger doors. These contacts can be as far as 2 3/4 inches apart and still operate.

Mfr. # SM-226RQ

Product Description

  • Switch contained in low-profile cast aluminum housing anchored directly to the floor and curved, so heavy vehicles can cross over without damaging it
  • Magnet enclosed in round bracket
  • 24" (61cm) wire leads enclosed in stainless-steel cable
  • Cable: 24”
  • Gap: 2-3/4”
  • Housing: Aluminum die-cast
  • Compatibility: Use with closed circuits

Product Reviews

  • "Nice, but NOT NC contacts" by mbr45208 on 2/2/2013
    Overall: 4.5 out of 5
    Value:
    Quality:

    This is a well-made switch and should perform well, but the contacts are Normally OPEN, not NC as stated in the title. This is clearly marked on the back of the switch.

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Package Specifications & Dimensions
Weight:0.47 lbs.
Hazardous:Yes
RoHS Comp:Yes
Warranty:0 days
Need to Return?
Length:10 in.
Width:5.5 in.
Height:0.5 in.
Shipping Information
Extra Shipping Charge:No
Drop Ship:No
Catalog Pages
Catalog/Page:

MCM Cat 57, Page 543

MCM Cat 56, Page 508

PDF Reference
Datasheet

Requires Adobe Acrobat Reader.

Mfr. Info

Mfr. Name:Seco-larm
Mfr. Part Number:SM-226RQ