Von Duprin CXA99EO 4 28 Delayed Egress Exit Device

Product Description

The VON DUPRIN CXA99EO 4 28 is a Grade 1 delayed egress exit device configured with a rim latch in an exit-only function and finished in satin aluminum clear anodized. Delayed egress hardware is designed to hold a door secured for a timed interval before releasing, meeting code requirements for controlled egress in secured facilities. The rim latch design mounts directly to the door face without requiring mortise prep, simplifying installation on standard commercial door preps. This device is specified by security consultants, architectural hardware distributors, and licensed locksmiths for applications where occupant flow must be monitored and delayed egress compliance is required by the authority having jurisdiction.

This exit device is suited for commercial and institutional buildings where delayed egress is required by the applicable fire or building code. Typical installations include storage areas, stairwells, and secured corridors in healthcare, education, and retail environments where exit-only traffic flow is required. The exit-only configuration means no exterior entry hardware is included, keeping the exterior side inactive.

Key Features

• Grade 1 heavy-duty rating for high-cycle commercial door applications
• Delayed egress function holds door secured for a code-compliant timed interval before releasing
• Rim latch mounting eliminates the need for mortise pocket preparation
• Exit-only configuration with no exterior trim or entry function
• Satin aluminum clear anodized finish resists corrosion and blends with aluminum storefront framing

Compatibility

Designed as an OEM-style delayed egress rim exit device for commercial door applications. No specific compatible door or frame model numbers were provided in the product data.

Installation Notes

Installation should be performed by a licensed locksmith or qualified architectural hardware technician familiar with delayed egress code requirements under NFPA 101 and the local authority having jurisdiction. Power down any connected alarm or access control circuits before wiring the device. Verify that the delayed egress interval and alarm function comply with local fire and building codes before commissioning. Do not block or defeat the delayed egress mechanism during or after installation.