Von Duprin 33A Series - 33A-EO Rim Exit Device - Exit Only (Fire-Rated or Non Fire -Rated)

Von Duprin 33A Series – Grooved Case Narrow Stile Rim Exit Device

The Von Duprin 33A Series is a heavy-duty exit device designed for narrow stile doors in demanding institutional and commercial environments such as schools, hospitals, and government facilities.
Built to the highest performance and safety standards, the 33A Series combines durability, versatility, and modern design for reliable operation under continuous use.

The 33A Series features a grooved mechanism case, offering a distinctive architectural appearance while maintaining Von Duprin’s trusted strength and dependability.
Fire-rated models are available and identified with the “-F” suffix.

Features and Benefits

• Designed for high traffic and heavy-duty applications.

• Suitable for single, double, and mullion door configurations.

• Field-configurable options to meet various facility needs.

• Retrofit kits available for upgrading existing installations.

• One-piece center case cover ensures durability and a clean aesthetic.

Certifications

• ANSI/BHMA A156.3 2014 Grade 1

• ANSI/UL 10C (Fire-rated versions only)

• ANSI/UL 305

• CAN/ULC-S104 (Fire-rated versions only)

• CAN/ULC-S132

Device Types

The 33A Series offers multiple configurations for different door setups:

• No suffix: Rim device

• 27: Surface-mounted vertical rod

• 47 / 48: Concealed vertical rod (5/8” or 1-1/2” bottom bolt)

• 49: Concealed vertical cable

• 50WDC: Wood Door Concealed Vertical Cable

Functions and Trims

Functions:

• Exit Only: No outside trim

• Passage: Lever or knob always active

• Classroom: Key locks and unlocks the lever or knob

• Storeroom: Key retracts the latchbolt; lever or knob remains rigid

• Dummy: Fixed mechanical trim for pull operation

Popular Trim Options:

• 360 Trim: Lever or thumbpiece trim — available in Classroom, Passage, and Dummy functions

• 386 Trim: Pull trim — available in Storeroom and Dummy functions

• 388 Trim: Optional pull trim — available in Storeroom function

Various lever designs and finishes are available to match architectural requirements.

Options and Upgrades

The 33A Series supports a range of advanced options and electronic integrations:

• CDSI/HDSI: Security dogging indicators for quick visual verification

• QEL: Quiet electronic latch retraction for access control systems

• RX / LX: Request-to-exit and latchbolt monitoring options

• AX: ADA-compliant version requiring only 5 lb. of operating force (per ADA 2010 & CBC 2013)

• CX (CHEXIT): Delayed egress configuration meeting NFPA and IBC standards (15-second delay with alarm)

Accessories

The 33A Series includes a complete line of mullions, strikes, power transfers, and retrofit kits, providing flexibility and support for evolving facility requirements.

Applications

The Von Duprin 33A Series is ideal for high-traffic institutional and commercial environments that demand safety, reliability, and architectural appeal.
Perfect for use in schools, hospitals, offices, and public buildings, it delivers exceptional performance with long-term dependability.