Securitron MK Momentary Mortise Key Switch


Sale price$135.98
In Stock


The Securitron MK Key switch is a Momentary key switch – SPDT, less cylinder.
The MK key switch supports electric lock control, alarm panel arming, reset and override when paired with any mortise cylinder 1-1/8” to 1-1/2”.
MK Series key switches accept a mortise cylinder (1-1/8” or 1-1/4”) and can use 1 (included) or 2(optional) switches. Bi-Color LED 20mA, 12/24 VDC, 5 amp rated contacts.

Securitron MK Features:

  • Standard with 12 or 24VDC bi-color LED
  • Backing bracket permits integration with any 1-1/4" [32mm] or 1-1/8" [28mm] mortise cylinder (not included)
  • Additional switch position on backing bracket allows another switch to be activated by turning the key in the opposite direction
  • 5 Amp rated plunger switch
  • Includes anti-tamper screws

Securitron MK Specifications:

Dimensions: Single Gang
Switch Mode: Momentary Action
Switch Configuration: SPDT
Switch Rating: 5 Amp Rated
Warranty: 1 Year

Securitron MK Certifications:

UL Rated:

UL listed
Underwriter’s Laboratories: File SA6635 Vol. 2 (UL 294 and NFPA 101)


California State Fire Marshal: 3774-0923: 102


City of New York MEA: 251-95E and 254-95E

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