Product Description
LD98NL-US28-4 Von Duprin with 990NL Night Latch Rim Device Less Dogging in Anodized Aluminum
| Part Number Breakdown: LD98NL-US28-4 | |
|---|---|
| 98 | 98 Series Rim Exit Device |
| LD | Latch Detector |
| NL | Night Latch |
| US28 | Aluminum (BHMA 628) |
| 4 | 4 Foot Door |
The LD98NL-US28-4 is a Von Duprin 98 Series Rim exit device with Latch Detector (LD) and Night Latch trim in Aluminum, sized for 4 Foot doors. Night Latch — outside knob locked/unlocked by key, always free from inside. Ships less cylinder — order a mortise cylinder separately to match your existing keyway.
Latch Detector — monitors the latch bolt position and reports status to the access control panel. 24VDC. ANSI/BHMA A156.3 Grade 1 certified. Hex key dogging standard. Field reversible handing.
Pro-Tip from Our Locksmiths: Night Latch with Latch Detector is the go-to for schools — the teacher can lock/unlock from outside, and the access panel monitors latch status for lockdown verification. The LD switch is factory-installed and wired to a pigtail for easy connection during rough-in.
| Specifications | |
|---|---|
| Part Number | LD98NL-US28-4 |
| Brand | Von Duprin (Allegion) |
| Series | Von Duprin 98 |
| Electronics | LD — Latch Detector (24VDC) |
| Function | Night Latch |
| Grade | ANSI/BHMA A156.3 Grade 1 |
| Mount Type | Rim (horizontal latch bolt — strikes into frame on lock side) |
| Finish | Aluminum (US28/628) |
| Door Size | 4 Foot |
| Cylinder | Less Cylinder |
| Fire Rating | Non Fire Rated |
- Von Duprin 98 Series Rim exit device — Grade 1 architectural-grade panic hardware
- Latch Detector (LD) — monitors latch bolt position, reports to access control panel, 24VDC
- Rim (horizontal latch bolt — strikes into frame on lock side)
- Aluminum finish
- Hex key dogging standard — hold latch retracted during business hours
- Ships less cylinder — order separately to match your keyway
Cross-Reference: The LD98 is the 98 Series with factory-installed Latch Detector switch. Same mounting prep, same strike, same trim compatibility as the standard 98 — with the addition of latch bolt position monitoring for access control integration.
Free Expert Support — As an authorized Von Duprin distributor, Lock Depot provides full manufacturer warranty coverage and same day shipping on most orders. Call (877) 365-5625 for personalized help.
Image shown is representative of the product line. Actual finish, trim, and configuration may vary by SKU.
