Description
The Von Duprin 33ADT 4 US4 is a Grade 1 panic exit device designed for single and double doors with mullion support. Built to ANSI A156.3-2014 standards and UL-listed for life safety compliance, it solves the critical need for reliable emergency egress on commercial and institutional doors. The grooved case mechanism provides dependable operation in high-traffic environments.
This rim device fits door sizes 2'4" to 4' and accepts multiple electric and monitoring options including latch retraction, signal switches, and alarm kits. Sex bolts (44mm to 57mm) accommodate both wood and metal applications. For expert guidance on configuration, compatibility with your door assembly, and keying options, contact our authorized dealer specialists at sales@edlocks.com or 1-877-207-6067.
Specifications
- Grade: ANSI A156.3-2014 Grade 1
- Device Lengths: 2'4" to 3' (711mm to 914mm) and 2'10" to 4' (864mm to 1219mm)
- Center Case Dimensions: 8 3/16" x 2 13/32" x 1 9/16" (208mm x 62mm x 40mm)
- Mechanism Case Dimensions: 2 1/4" x 2 1/4" (57mm x 57mm)
- Latch Bolt: Deadlocking, 3/4" (19mm) throw
- Device Centerline: 39 13/16" (1011mm) from finished floor
- Pushbar Projection: 3 13/16" neutral, 3 1/16" depressed
- Dogging: Hex key standard; CD cylinder and LD options available
- Electric Options: LX, RX, RX2, SS, EL, ALK available
- Strike: 1439 Dull Black
