Von Duprin 3527A-EO Surface Vertical Rod Exit Device-Exit Only ( VOND-EL3527AEO26)


3527A-EO Von Duprin surface vertical rod exit device exit only for all types of single and double doors with mullion

The 3527A has a smooth mechanism case.

3527A fits door stiles as narrow as 1-3/4″ (44mm).

UL listed for Panic Exit Hardware.

Devices are ANSI A156.3 – 2001 Grade 1.


The surface vertical rod device is non-handed except when the SS (Signal Switch) option is used.

Newly designed device has a one piece center case cover.

Features and Benefits

35A Series features smooth mechanism case

Deadlocking latch bolt prevents forced latch bolt retraction providing higher security for your openings

A fluid dampener decelerates the pushpad on its return stroke and eliminates most noise associated with exit device operations. Furnished on all 33A/35A series exit devices


Device Lengths: 3’ 2’4″ to 3’ (711mm to 914 mm) Door Size; 4’ 2’10″ to 4’ (864 mm to 1219 mm) Door Size

Strikes: Top – 266 – Dull Black, Bottom – 248L4 & 304L – Unfinished

Dogging Feature: Hex key dogging standard

Dogging Options: CD Cylinder Dogging; LD Less Dogging

Electric Options: LX Latchbolt Monitor Switch; RX Pushpad Monitor Switch; RX2 Double Pushpad Monitor Switch; SS Signal Switch; EL Electric Latch Retraction; ALK Alarm Exit Kit

Miscellaneous Options: PN Pneumatic Latch Retraction; LBR Less Bottom Rod; GBK Glass Bead Kit PL Pullman Latch

Fasteners & Includes Sex Bolts (SNB): 1 3/4″ (44mm) – 2 1/4″ (57mm) Wood & Metal Doors; #425 SNB furnished standard for end case; #325 SNB furnished standard for EO (exit only device); #325 SNB furnished for top and bottom latches

Latch Bolt: Deadlocking Anti-friction Top & Bottom Bolt 5/8″ (16mm) throw

Device Centerline from Finished Floor: 39 5/8″ (1006mm)

Door Undercut: 1/4″ (7mm)

Center Case Dimensions: 8 3/16″ x 2 13/32″ x 1 9/16″ (208mm x 62mm x 40mm)

Mechanism Case Dimensions: 2 1/4″ x 2 1/4″ (57mm x 57mm)

Top and Bottom Latch: 4 1/2″ x 2 1/8″ x 1 1/2″ (114mm x 54mm x 38mm)

Vertical Rods: 1/2″ square tubing, standard rods accommodate 7’(2134mm) door; Top rod length is 34 15/16” (887mm); Bottom rod length is 31 1/4″(794mm); Extension rods available 1’ (205mm) or 3’(914mm) for doors over 7’; One piece top rod available for 8’(2438mm)-10’(3048mm) door

Projection: Pushbar Neutral – 3 13/16″ (97 mm)
Pushbar Depressed – 3 1/16″ (78 mm)


Alarm Kit – ALK  The ALK battery alarm kit is a simple yet effective way to deter unauthorized use of an opening.

Request to Exit — RX  The RX (Request to Exit) feature is used to signal the use of an opening.

Latch Bolt Monitoring — LX  The LX feature is used to signal the use of an opening.

Electric Latch Retraction — EL  The EL feature allows for the remote unlatching of exit devices.

Signal Switch — SS  Monitors pushpad and latch bolt.

Accessories – see catalog for more details

Electrical Power Transfer –– EPT Pneumatic Transfer – PNT  Electric Power Transfer provides a means of transferring electrical power from a door frame to the edge of a swinging door.

Pneumatic Controlled Exit Devices–PN  The PN feature provides remote latch bolt retraction in hazardous areas where electrically operated devices would not be permitted.

Less Dogging – LD  Less Dogging is available in all 33A/35A Panic Exit devices to remove the dogging option.

Cylinder Dogging — CD  Cylinder dogging is available on all 33A/35A Panic Exit devices to replace the standard hex key dogging.

Cylinder Dogging Kit — CDK  For field conversion, a cylinder dogging conversion kit is available. Cannot be added to fire exit hardware.

Hex Key Dogging Kit — HDK  For field conversion, a hex key dogging conversion kit is available. Cannot be added to fire exit hardware.

Dummy Pushpad  The 330 dummy pushpad is designed as a companion unit for all 33A devices.

Vertical Rod and Latch Guard — RG-27  Series RG-27 Vertical Rod and Latch Guards protect the bottom rods of exit devices from the damaging impacts of carts or gurneys passing through doors.

Less Bottom Rod – LBR  LBR option is available, using a spring loaded auxiliary latch bolt installed in the lower door edge.

Pullman Latch – PL  When PL is specified the standard latches are replaced with pullman style latches.

Glass Bead Kit – GBK  Glass bead conversion kits are available for all 33A/35A Series devices for use on doors with raised glass beads.

Antimicrobial Coatings for Exit Hardware  Hospitals, schools and food service facilities experience high traffic every day, even in areas that aren’t open to the public. Von Duprin can help you combat bacteria on panic and exit hardware with an antimicrobial coating that provides lasting protection.

Chexit® Delayed Egress  Chexit controlled exit device is for use on panic or fire exit hardware applications. Designed for use on delayed exit applications, the Chexit system is ideal for highly controlled areas such as computer rooms, research and development labs, etc.

Quiet Electrified Latch (QEL) Exit Device  The QEL option provides electronic control of an exit device and is ideally suited for environments where limited operational noise is desired. The QEL option allows for the electronic unlatching of exit devices for continuous push-pull operation and/or access control and can be activated through a building automation system, access control system or by a control system operator.

Weight 4 kg
Dimensions 48 × 18 × 12 cm