UNL

Patents, Approvals, and Listings

• UNL and MUNL - Windstorm Latching Hardware (ZHEM)
• UL/cUL GXAY.R18923 / GXAY7.R18923
• UL ZHEM.R25219
• UL 10C Listed, 3-hour single door
• UL listed to ANSI/ SDI-BHMA A250.13(60 PSI) Windstorm
• UL Certificate of Compliance (CoC)
  
• UNL and MUNL - Underwriter's Laboratories: File R18923
• GXAY and GXAY7 Electric Strike for Fire Door (UL 10B & UL 10C)
• CAN4-S104, CAN/ULC Listed
• NFPA-252 fire door compliant
• ANSI/BHMA A156.31, Grade 1; E09321,E09322, E09323
• ASTM-E152 fire door compliant
• Patent Numbers: #5,474,342, #6,022,056, #6,581,991

UNL is a revolutionary new type of unlatch strike, weighing 1.6 lbs. with a holding force of 1500 lbs. (680 kg); this eliminates the necessity to perform a routing operation on the door frame for installation. It also presents a concealed appearance, giving it an enhanced appeal to the installation. The security is also improved since an intruder is less able to determine the type of security device used on the door.

The UNL is used for a cylindrical/tubular lockset. Unlatch will support full dead latch functions which will release under pressure and include a latch status monitoring output which will report when the door is in latched condition or open.

FSUNL option: FSUNL allows the UNL and MUNL to become selectable for either "fail-safe" or "fail secure" operations.

For installation instructions, click here

The recommended tools for this installation are a medium Phillips driver, a medium slotted driver, chisel, wire cutters, a volt/OHM meter, crimp connectors and lastly, crimp pliers. The operating temperature goes from -20 to +125F [-29 to +52C] making it suitable for any door.

For the architectural specifications click here

side post or surface of the doorway required. It's also available in polished brass (US03), and oil rubbed bronze (US10B). It’s motorized, with no solenoids. Its current draw and voltage come in two varieties 12VDC: 40mA continuous, minimum 300mA when operating, and 24VDC: 40mA continuous, minimum 200mA when operating.

There are four different models, the UNL-12 which is the standard model for cylindrical locks with 12VDC and the UNL-12-10B which is the same but in oil rubbed bronze. The UNL-24 is the standard model for 24VDC, and the UNL-24-10B is that same model in oil rubbed bronze.

Note that the UNL will require three wires for operation, a continuous positive DC, continuous negative DC, and a trigger input. It will release under pre-load, and the latch status sensor is standard (SPDT). It is UL listed which means that the UNL is issued a quality mark of safety.

The UNL comes with MagnaCare lifetime replacement with no-fault warranty.

For a more visual aid on the UNL, click here