Alarm Controls MCK-1-2 Mortise Cylinder Key Switch, 1.75" SPDT Alternate

Product Overview

MCK Series Mortise Cylinder Stations

Narrow or single gang mortise cylinder keyswitch stations. Choose between momentary action switch that remains active as long as it’s depressed, or alternate action switch that alternates between open (disconnected) and closed (connected) each time it's pressed. Available with LED options.


  • Stainless steel wall plate accepts standard 1-1/8” mortise cylinder
  • Tamper-proof and slotted head screws included
  • Mortise Cylinders not included, available separately (CY-1, CY-1A)


  • Momentary or alternate switch, see model chart
  • SPDT or DPDT, see model chart
  • No LED, green LED, green and red LEDs, see model chart
  • Pneumatic time delay: 2 to 45 seconds, see model chart
  • AddWPfor weather resistant cover and surface mount box. Available for single gang models only.


  • Contacts rated 4A at 28 VDC
  • LEDs operate on 12 or 24 VDC/VAC
  • Switch depth behind plate: 1-1/4”
  • Switches terminated in colored leads
  • Operating Temperature:+15 to 120F
General Information
Name: Alarm Controls MCK-1-2 Mortise Key Switch, ASSA ABLOY, Alarm Controls
Category: Alarm Controls Corporation, Access Control & Communications, Locking Devices, Exit Devices & Push Buttons
UPC Code: 604840990127
Country of origin: United States. Country of origin is subject to change.

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