Securitron MUNL Mortise UnLatch® Strike

Documents, Certifications & Listings

Mortise UnLatch is for any application where an electric strike would be used for a mortise type lock. The Mortise UnLatch includes field adjustability for latch and deadlatch positions, releases under pressure and includes a latch status monitoring output.

Product Features

  • No cutting or altering of the jamb required
  • Releases under preload
  • Fits standard ANSI 4-7/8" strike cutout
  • Motorized, no solenoids
  • Fully concealed installation
  • Maintains dead-latch function at all times
  • Continuous duty
  • Latch status sensor is standard
  • One model works with most North American Mortise Locks (Sargent 7900 and 8200 require tab kit model #STK-1 for retrofit installations)
  • SecuriCare five-year, no-fault, no questions asked warranty 

Product Options

  • 12VDC
  • 24VDC
  • FSUNL for field selectable fail-safe operation

Securitron FSUNL Fail Safe Unlatch® Module: FSUNL allows the UNL and MUNL to become selectable for either "Fail Safe" or "Fail Secure" operation. Removal of power initiates a full unlatch or latch cycle depending on which mode is selected.

Learn More about FSUNL


Holding Force

1500lbs [680kg]

Current Draw:
12VDC: 40mA continuous, minimum 700mA when operating
24VDC: 40mA continuous, minimum 500mA when operating
Higher capacity supply (1-4 Amps) is recommended for startup inrush to achieve best operation under pre-load

Operating Temperature: 
-10 to +125F [-29 to +52C]

Shipping Weight: 
2 lbs [0.91kg]

US26D/626 -
 Stainless Steel
US10B/613 - Oil Rubbed Bronze
US3/605 - Bright Brass Clear Coated


Part # Description
MUNL-12 Mortise Unlatch - 12VDC
MUNL-24 Mortise Unlatch - 24VDC


Patent pending and/or patent

Certifications and Listings
  • UNL and MUNL - Underwriter's Laboratories: File R18923
  • UNL and MUNL - Windstorm Latching Hardware (ZHEM)
  • UL/cUL GXAY.R18923 /GXAY7.R18923
  • UL ZHEM.R25219
  • UL 10B Listed
  • UL 10C Listed
  • UL listed to ANSI/ SDI-BHMA A250.13(60 PSI) Windstorm
  • UL Certificate of Compliance (CoC)
  • CAN4-S104, CAN/ULC Listed
  • ANSI/BHMA A156.31, Grade 1; E09321,E09322, E09323 
  • NFPA-252 fire door compliant
  • ASTM-E152 fire door compliant
  • GXAY and GXAY7 Electric Strike for Fire Door (UL 10B & UL 10C)