Sargent LC-12-8904-F-ETB Fire Rated Mortise Exit Device, Night Latch, For 33-36" Dr Widths, Less Cylinder

The Sargent LC-12-8904-F-ETB is a fire-rated mortise exit device built for high-traffic commercial openings that demand reliable, code-compliant egress. Configured with the ETB lever trim in a Night Latch function, this device keeps the exterior lever locked at all times while allowing free egress from the inside, with the outside lever retracting the latch only when a key is used. The "LC" designation means the device ships less cylinder, giving you flexibility to match your existing keying system. Sized for 33" to 36" door widths, it combines the security of a mortise lock case with the durability Sargent is known for in heavy-use environments.

Features

• Fire-rated mortise exit device suitable for labeled fire door assemblies.
• Night Latch (8904) function keeps the outside trim locked, with key access to retract the latch.
• ETB lever trim provides a durable, ergonomic grip for controlled entry.
• Supplied less cylinder (LC) to accommodate your preferred keying.
• Designed for doors measuring 33" to 36" in width.
• Mortise lock case offers added strength and security over rim-style alternatives.

Functional Details

The 8904 Night Latch function allows free egress at all times from the interior push bar while securing the exterior. Entry from the outside requires a key, which momentarily retracts the latchbolt for controlled access.

• Night Latch - Exit only.
• Key outside unlatches for momentary access.
• Free egress at all times from inside.

Arm Type Details

This unit uses the ETB escutcheon lever trim. The lever is mounted on a protective escutcheon plate and, in the Night Latch configuration, serves as a key-operated pull for authorized entry while remaining locked during normal operation.

Included Components

The device includes the fire-rated mortise exit chassis, the ETB lever trim, and standard mounting hardware. A mortise cylinder is not included and must be ordered separately.