Product Description
RX9957L-NL-17 4 US28 LHR Von Duprin 99 Series Night Latch Surface Three Point Latch Exit Device in Anodized Aluminum
The RX9957L-NL-17 4 US28 LHR is a Von Duprin 9957 Series Surface Three Point Latch exit device with L-17 Lever trim in Anodized Aluminum (US28/628), sized for 4' doors. Night Latch — outside lever locks and unlocks by key, inside always free for egress. Ships less cylinder — order a mortise cylinder separately to match your existing keyway.
Request to Exit — Request to Exit switch signals the access control system when the exit device is activated. 24VDC.
ANSI/BHMA A156.3 Grade 1 certified. Hex key dogging standard. Factory set LHR, field reversible.
Pro-Tip from Our Locksmiths: When servicing a 9957 three-point latch, check all three latch points independently. A misaligned top or bottom bolt can cause the whole device to bind. Adjust strikes one at a time, starting with the rim latch, then top, then bottom.
| Specifications | |
|---|---|
| Part Number | RX9957L-NL-17 4 US28 LHR |
| Brand | Von Duprin (Allegion) |
| Series | Von Duprin 9957 |
| Function | Night Latch |
| Lever Design | L-17 Lever |
| Grade | ANSI/BHMA A156.3 Grade 1 |
| Mount Type | Surface Three Point Latch (three latch points for enhanced security) |
| Finish | Anodized Aluminum (US28/628) |
| Handing | Left Hand Reverse (LHR) |
| Door Size | 4 Foot |
| Cylinder | Ships less cylinder |
| Fire Rating | Non Fire Rated |
| Electronics | Request to Exit |
- Von Duprin 9957 Series touch bar mechanism — Grade 1 architectural-grade panic hardware
- Surface Three Point Latch (three latch points for enhanced security)
- L-17 Lever trim — pull operation from outside
- Anodized Aluminum finish
- Request to Exit — Request to Exit switch signals the access control system when the exit device is activated
Image shown is representative of the product line. Actual finish, trim, and configuration may vary by SKU.
