Product Description
QEL78NL-OP-US3-4 Von Duprin 78 Series Latch Bolt Monitoring Night Latch Rim Exit Device in Bright Brass
The Von Duprin QEL78NL-OP-US3-4 is a crossbar rim exit device for storefront and aluminum doors. Night Latch with Optional Pull — outside lever locks and unlocks by key with optional pull handle. Inside always free for egress. Ships less cylinder — order a mortise cylinder separately to match your existing keyway.
The 78 Series crossbar provides a wide activation zone across the full width of the door — maximum push area for emergency egress. Available in 4-foot width. Non-handed design works for both LHR and RHR door swings. UL listed for panic exit hardware with hex key dogging standard. ANSI/BHMA A156.3 Grade 1 certified.
Pro-Tip from Our Locksmiths: The 78 Series rim device gives you a crossbar exit on wide stile storefront doors. Available in both 3-foot and 4-foot widths. If you're coming from a 22 Series pushpad, note the 78 crossbar has a wider activation zone — better for ADA compliance on high-traffic entries.
| Specifications | |
|---|---|
| Part Number | QEL78NL-OP-US3-4 |
| Function | NL-OP - Night Latch Optional Pull |
| Grade | ANSI/BHMA A156.3 Grade 1 |
| Mount Type | Rim (horizontal latch bolt — strikes into frame on lock side) |
| Door Width | 4-Foot (48") |
| Door Material | Aluminum, Glass, Hollow Metal |
| Outside Trim | Included |
| Warranty | 5-Year Mechanical |
- Crossbar design — wide activation zone across full door width
- Non-handed — same device fits LHR and RHR door swings
- Hex key dogging standard — holds latch retracted during business hours
- Bright Brass (US3/605) finish
Works With: For pairs of doors, see the 7827 Surface Vertical Rod or 7847 Concealed Vertical Rod. For narrow stile doors, see the 55 Series.
Image shown is representative of the product line. Actual finish, trim, and configuration may vary by SKU.
