Von Duprin 5575L 643E LHR L/TRIM Narrow MTS 643E Crossbar Exit

Von Duprin 5575L 643E LHR L/TRIM Narrow MTS Crossbar Exit 643E combines functionality with a classic design, making it an ideal choice for retro-inspired architecture and historical buildings. This Grade 1 Mortise Exit Bar features a 48" narrow stile crossbar that fits seamlessly on single and double doors with mullions, accommodating door stiles as narrow as 1 3/4" (44 mm). Designed for commercial use, the 5575L includes a classroom function and hex key dogging for added security. With a crossbar height of 36 13/16" (935 mm) from the finished floor and a projection of 3 3/4" (95 mm) when neutral, this device is engineered for ease of use and accessibility. The latch bolt boasts a 3/4" (19 mm) throw, ensuring reliable performance. Notably, this exit device is UL listed for accident hazard installations, ensuring it meets stringent safety standards. It comes without trim and includes a comprehensive screw pack for installation on doors up to 2 1/4" (57 mm) thick. Finished in aged bronze, the 5575L not only enhances security but also complements a variety of architectural styles. With a limited 3-year warranty, this robust exit device offers peace of mind for building professionals and discerning homeowners alike.

Narrow MTS Crossbar Exit 643E

Grade 1 Mortise Exit Bar, Narrow Stile Crossbar, 48" Device, Classroom Function, Less Trim, Hex Key Dogging, Aged Bronze Finish, Left Hand Reverse

The 55 Series from Von Duprin are exit device crossbars with a classic design. The 55 Series is a narrow stile device and commonly used in retro-inspired architecture and historical buildings.

Concealed Vertical Rod Exit Device, Dummy Trim.

55 Series devices for all types of single and double doors with mullion, UL listed for accident hazard installations. Fits doors stiles as narrow as 1 3/4" (44 mm). 

• Device functions Device ships EO/DT/NL/L
• Crossbar length 42" (1067 mm)
• Crossbar height to finished floor 36 13/16" (935 mm) at center
• Lock stile case 7 1 /4" x 1 3 /16" x 2 1 /4" (184 mm x 30 mm x 57 mm)
• Hinge stile case 7 1 /4" x 1 3 /16" x 2 1 /4" (184 mm x 30 mm x 57 mm)
• Crossbar tubing 1" (25 mm)
• Projection Crossbar neutral – 3 3/4" (95 mm) Crossbar depressed – 2 3/8" (60 mm)
• Latch bolt 3/4" (19 mm), throw
• Fasteners and Sex bolts (SBN) Includes screw pack for 1 3/4" (44 mm) and 2 1/4" (57 mm) thick metal or wood doors. Sex nuts and bolts included.

Resources

• 55 Series Exit Device Service Manual
• 55 Series Narrow Style Crossbar Devices Cut Sheet
• 5547WDC & 5547WDC-F Series Wood Door Template
• 5575 & 5575-F Mortise Lock Wood Door Template
• Von Duprin Finishes Chart