Product Description
55L-US10B-LHR Von Duprin 55 Series with Left Handed 379L Lever - Rim Exit Device in Oil-Rubbed
The Von Duprin 55L-US10B-LHR is a narrow stile rim exit device built for aluminum storefront and glass doors where standard-width exit devices won't fit. Lever Trim — outside lever retracts the latch for entry. Lever operation controlled by cylinder on keyed functions. Ships less cylinder — order a mortise cylinder separately to match your existing keyway.
The 55 Series crossbar design provides a wide "strike zone" for egress on doors with stiles as narrow as 1-3/4". Unlike modern pushpad devices, the crossbar spans nearly the full width of the door — giving occupants maximum activation area in an emergency. This is a handed device — verify LHR or RHR before ordering. UL listed for panic exit hardware with hex key dogging standard. ANSI/BHMA A156.3 Grade 1 certified.
Pro-Tip from Our Locksmiths: The 55 fits stiles as narrow as 1-3/4" — but measure your actual stile, not the door. If you're between 1-3/4" and 2", the 55 is your only Grade 1 option from Von Duprin. Below that, you're looking at a rim panic with a narrow stile trim adapter.
| Specifications | |
|---|---|
| Part Number | 55L-US10B-LHR |
| Function | Lever Trim |
| Grade | ANSI/BHMA A156.3 Grade 1 |
| Handing | Left Hand Reverse (LHR) |
| Minimum Stile Width | 1-3/4" (44mm) |
| Door Material | Aluminum, Glass, Hollow Metal |
| Outside Trim | Included |
| Warranty | 5-Year Mechanical |
- Narrow stile crossbar design — fits door stiles as narrow as 1-3/4"
- Hex key dogging standard — holds latch retracted during business hours
- Handed device — factory-set for LHR or RHR
- Oil Rubbed Bronze (US10B/613) finish
Works With: Add outside trim separately: 550DT Dummy Pull, 555NL Night Latch Pull, or 379L Lever Trim. The 55 Series uses dedicated narrow stile trim — standard 99 or 33A trim will NOT fit. For pairs of doors, see the 5547 Concealed Vertical Rod.
Authorized Von Duprin Distributor — Lock Depot is an authorized Von Duprin dealer. Every product ships brand new in original manufacturer packaging with full factory warranty. Contact us or call (877) 365-5625 for expert assistance.
Image shown is representative of the product line. Actual finish, trim, and configuration may vary by SKU.
