The Von Duprin 9875TP-BE-F-4-US3 is a mortise lock fire exit device designed for a 2'10" to 4' door size. The unit is equipped with a smooth mechanism case and a thumbpiece trim with a blank escutcheon. The device features a bright brass finish.

The 9875-F is a fire exit mortise lock device for all types of single doors up to 4 x 10 (1219mm x 3048mm) or 8 x 10 (2438mm x 3048mm) double doors installations, UL listed for Fire Exit Hardware. Devices are ANSI A156.3 2001 Grade 1. Fits door stiles as narrow as 4-3/4" (121mm). The mortise lock device is non-handed except when the following device options are used: -2 (Double Cylinder) or SS (Signal Switch) devices.

The 7500 Mortise lock is equipped with a 3/4" (19mm) anti-friction latch bolt which is field reversible without removing the lock from the door. It has a non-handed auxiliary bolt for deadlocking and a faceplate with an adjustable bevel.


Also known as: 9875TPBEF4US3

Technical Specifications:
  • UL Listing: UL 10C
  • Grade: Grade 1
  • Country Of Origin: USA
  • Finish: 605/US3
  • Series: 9875 Series Mortise Exit Device
  • BAA Qualified: Yes
  • Hand: Non-Handed
  • Limited Warranty: 3 Years
  • Finish Description: Bright Brass
  • Fire Rated: Yes


For more information about the Von Duprin 9875TP-BE-F 4 US3, please contact us.
  • Designed for a 2'10" to 4' door size
  • Fire exit mortise lock device for all types of single doors up to 4' x 10' or 8' x 10' double doors installations
  • Bright brass finish
  • Smooth mechanism case
  • No mechanical dogging
  • Thumbpiece trim with blank escutcheon - always operable (no cylinder)
Live Chat