Sargent 12-55-8910-F Fire Rated Mortise Exit Device, Exit Only, For 33-36" Dr Widths, Request To Exit

The Sargent 12-55-8910-F is a fire rated mortise exit device built for reliable, code-compliant egress on commercial and institutional openings. Designed as an exit-only device for door widths between 33" and 36", it combines the dependable security of a mortise lock body with the smooth operation of Sargent's 8900 series. The integrated 55 request-to-exit (RX) switch monitors the status of the device, making it ideal for access-controlled and alarmed openings where electronic signaling is required. Its heavy-duty construction and UL fire label make it a trusted choice for facilities that demand both life safety and long-term durability in high-traffic environments.

Features

• Fire rated mortise exit device suitable for labeled door assemblies.
• Exit-only function with no outside trim for secure egress-controlled openings.
• Sized for doors measuring 33" to 36" in width.
• Built-in 55 request-to-exit (RX) switch for monitoring and access control integration.
• Robust mortise lock body for added strength and reliability.
• Part of Sargent's durable 8900 series mortise exit device line.

Functional Details

The request-to-exit (RX) option uses an internal switch that signals when the push rail is depressed, allowing the access control system to recognize a legitimate exit and avoid triggering a forced-door alarm. The mortise lock body engages the frame for secure latching while permitting free egress at all times.

• Exit only, no outside trim.
• Request to exit (RX) signal switch monitors push pad operation.
• Fire rated for use on labeled openings.

Included Components

The device ships as a complete fire rated mortise exit assembly with the integrated request-to-exit switch and mounting hardware for standard installation.