Sargent 12-8863-J-PTB Fire Rated Rim Exit Device, Classroom Function, PTB Thumbpiece Trim, 37"-42" Door Width, Less Dogging, Grade 1, Reversible, Less Cylinder

The Sargent 12-8863-J-PTB is a fire-rated rim exit device built for demanding commercial openings that require reliable classroom-function control. Designed for doors measuring 37 to 42 inches wide, it pairs the durable 8800 Series rim mechanism with the PTB thumbpiece trim and J escutcheon for secure, code-compliant egress. The classroom function lets authorized users lock or unlock the outside trim by key, while free egress is always available from the inside. As a fire-rated model, it ships less dogging to meet life-safety requirements, and its reversible design adapts to both left- and right-hand doors. Supplied less cylinder for added keying flexibility.

Features

• Fire-rated rim exit device suitable for labeled door and frame assemblies.
• Classroom function controls outside trim access while allowing free egress at all times.
• PTB thumbpiece trim with J escutcheon for dependable outside operation.
• Sized for single doors between 37 and 42 inches in width.
• Field-reversible to fit left- or right-hand door applications.
• Supplied less dogging to comply with fire-rated code requirements.
• Furnished less cylinder, allowing you to match existing keying systems.
• Grade 1 construction built for heavy-duty, high-traffic environments.

Functional Details

The classroom function (type 63) operates so that free egress is always available from the push side. The outside thumbpiece trim can be locked or unlocked by key, letting staff secure a room without needing to lock it from inside.

• Key locks or unlocks the outside lever/thumbpiece.
• Latchbolt operated by thumbpiece when unlocked.
• Exit device always allows free egress.

Included Components

This device includes the rim exit chassis, PTB thumbpiece trim with the J escutcheon, and all standard mounting hardware. A cylinder is not included and must be ordered separately to complete keying.