Sargent LC-12-8904-G-ETL Fire Rated Mortise Exit Device, Night Latch, For 43-48" Dr Widths, Less Cylinder

The Sargent LC-12-8904-G-ETL is a fire-rated mortise exit device built for high-traffic commercial openings that require reliable security and code compliance. Configured for 43" to 48" door widths, it features a night latch function with an ETL (G-type) escutcheon trim and ships less cylinder, allowing you to install the mortise cylinder of your choice. As part of Sargent's 8900 series, this device combines a durable mortise lock case with a sturdy push rail for smooth daily operation. It's an ideal choice for fire-rated exterior and interior doors where controlled entry and dependable panic egress are both essential.

Features

• Fire-rated mortise exit device suitable for labeled door and frame assemblies.
• Night latch (12) function provides key-controlled entry while maintaining free egress.
• Sized for 43" to 48" door widths without additional components.
• ETL escutcheon trim (G) offers a clean, robust exterior appearance.
• Supplied less cylinder for flexible keying and cylinder selection.
• Mortise lock case design delivers strong latch engagement and long-term durability.

Functional Details

The night latch function allows entry from the outside using a key in the trim cylinder, while the inside push rail always permits free, immediate exit. When the door is closed, it latches automatically and remains secured until retracted by a key or from the inside.

• Key unlocks/retracts latch bolt for momentary entry.
• Free egress at all times by pressing the push rail.

Arm Type Details

This unit uses a mortise exit device configuration, where the latch bolt engages a strike mounted in the frame. The mortise case provides superior security and smoother operation compared to rim-mounted alternatives, making it well suited for demanding entry and egress applications.

Included Components

The device includes the mortise exit chassis, G-type ETL escutcheon trim, and push rail assembly. A mortise cylinder is not included and must be ordered separately.