Name: Von Duprin 33A/35A Rim Exit Device - 3-Foot (OLD)
Brand: Von Duprin
SKU: VON-33A-3-628
Price: 1460.28 USD
Availability: InStock
Rating: 5 (5 reviews)

Product Overview
FAQs

33A/35A Rim Exit Device

33A and 35A for all types of single and double doors with mullion, UL listed for panic exit hardware. Devices are ANSI A156.3 – 2014 Grade 1. The 35A has a smooth mechanism case and the 33A has grooved case. The rim device is non-handed except when the SS (signal switch) option is used.

33A/35A fits door stiles as narrow as 1 3/4” (44mm). Newly designed device has a one piece center case cover.

33A/35A Series

The 33/35A Series devices are narrow stile heavy-duty push pads. Architectural design elements differ slightly between the 33A and the 35A.

The 35A Series device has a smooth mechanism case, while the 33A Series has a grooved mechanism case. The 33/35A Series have all been certified to the highest industry standards and are used in schools, hospitals and government buildings.

Features and Benefits

The breadth of available options allows for tailoring to any facility’s needs
Designed for high use and abuse in institutional applications like schools, hospitals and government facilities
A variety of field-configurable options available
Retrofit kits available to keep up with changing technology

Specifications

Specifications and certifications are specific to each configuration. See the 33A/35A Series catalogs for more information.

ANSI/BHMA A156.3 2014 Grade 1 certified
ANSI/UL 10C (fire-rated only)
ANSI/UL 305
CAN/ULC-S104 (fire-rated only)
CAN/ULC-S132

Device Type

The 33A/35A Series offers a solution for all/most single, double and double egress doors. All devices with Fire rated hardware can be identified with "-F" in their name and SKU.

No suffix: rim devices
27: surface-mounted vertical rod
47: concealed vertical rod (5/8” bottom bolt)
48: concealed vertical rod (1-1/2” bottom bolt)
49: concealed vertical cable
50WDC: Wood Door Concealed Vertical Cable

FUNCTIONS & TRIM

A variety of functions and trim options are available, but only the standard options are listed below. Refer to the 33A/35A Series catalog for more information.

Functions

Classroom: the key locks and unlocks the lever or knob
Dummy: the rigid mechanical trim for pull operation
Exit only: no outside trim
Passage: the lever or knob is always active
Storeroom: the key retracts the latchbolt, the lever or knob is rigid

33A/35A Series popular trims

360: lever or thumbpiece trim, 3 standard functions:
- Classroom (L, T)
- Passage (L-BE, T-BE)
- Dummy (L-DT)
386: pull trim, 2 standard functions:
- Storeroom (NL)
- Dummy (DT)
388: optional pull trim, 1 standard function:
- Storeroom (NL-OP)

Levers and Finishes

The 33A/35A Series offers many choices for levers and finishes. Refer to the 33A/35A Series catalog for more information.

OPTIONS

With the 33A/35A Series, devices can be retrofitted to keep up with evolving technology with various retrofit kits. Refer to the 33A/35A Series catalog for more information.

Retrofitting an existing device

CDSI/HDSI: security dogging indicators provide at-a-glance verification of the panic device status
QEL: electronic latch retraction with limited operational noise
Electronic switches: can be used as part of an access control system or in a standalone application
- Request to exit (RX)
- Latchbolt monitoring (LX)

Upgrading to a new device

AX: an accessible device that is certified to meet the 5 lb. force requirements for the 2010 American Disabilities Act (ADA) (Chapters 404.2.7 and 30934) and 2013 California Building Code (Chapter 11B-309.4)
CX: CHEXIT meets NFPA and IBC requirements for delayed egress; a standard device keeps doors secure for 15 seconds after a request to exit while a nuisance alarm sounds

Accessories

From mullions to powers transfers and strikes, the 33A/35A Series offers a range of accessories to meet the evolving needs of any facility. Refer to the 33A/35A Series catalog for more information.

Resources and Downloads

Manufacturer Resources

Installation Instructions

Product Specs

Product Group:: Exit Devices and Trim
Series:: 33 & 35 Series
Grade:: Grade 1
Fasteners:: Includes 1-3/4" and 2-1/4" wood/metal door fasteners, SNB included
Product Subgroup:: Exit Devices - Rim
Subcategory:: Rim Exit Devices
Latch Throw:: 3/4"
Product Type:: Exit Devices - Rim
Commercial/Residential:: Commercial
Device Centerline from Finished Floor:: 39-13/16"
Stile Type:: Narrow Stile
Wood Door Compatible:: No
MAP Policy:: Yes
Product Model:: 33A/35A-3'
Product Function:: EO, DT, NL, NL-OP, L, L-BE, L-DT, T, T-BE
Door Hand Direction:: Non-Handed
Door Thickness Range:: 1-3/4"
Product Size:: 36"
Dogging Configuration:: Hex Key Dogging
Product Dimension:: 8-3/16" x 1-9/16" x 2-13/32"
Product Projection:: 3-13/16"
Product Style:: Push Pads
Product Category:: Exit Devices and Trim
Department:: Door Hardware

Von Duprin VON-33A-3-628 – Frequently Asked Questions

1) Can I use a Von Duprin 33A/35A on a pair of doors, or do I need a mullion?

On a pair you need a mullion. The 33A/35A is a rim device, so its latch catches a strike on the frame face or on a removable mullion, and it is listed for single and double doors with mullion. If the opening has to stay clear for carts, beds or furniture, order a vertical rod version of the 33/35 series instead: 27 is surface vertical rod, 47 is concealed vertical rod with a 5/8 inch bottom bolt, 48 is concealed rod with a 1-1/2 inch bottom bolt, and 49 is concealed vertical cable.

2) Is the Von Duprin 33A/35A handed? I need one for a left hand reverse opening.

Non-handed, so the same device goes on a left hand reverse or right hand reverse door without ordering a hand. The single exception is the SS signal switch option, which makes the device handed. Outside trim is ordered separately from the device, so specify the trim function you want along with it.

3) I'm replacing an old rim exit device. Will a 33A/35A line up with the holes and strike that are already there?

Plan on new prep rather than assuming a match. The 33A/35A mounts at a device centerline of 39-13/16 inches from the finished floor, and as a rim device it latches 3/4 inch into a surface strike on the frame or mullion, not into a mortised ANSI strike pocket. If the old device sat at a different height or used a different strike, both the door prep and the frame strike have to move to suit. The device ships with 1-3/4 inch and 2-1/4 inch wood and metal door fasteners plus sex nuts and bolts, so the through-bolting hardware is covered.

4) Will the 33A/35A work on a 2 inch or 2-1/4 inch thick door?

No. The 33A/35A is built for a 1-3/4 inch door and nothing thicker. For a heavier leaf, the Adams Rite 8800 Series narrow stile rim device covers 1-3/4 to 2-1/4 inches, the Dormakaba 9300A covers the same range in a wide stile push pad, and the SDC S6136 electrified rim device covers 1-3/4 to 2 inches on a 4 inch wide stile.

5) What trim do I order with a 33A/35A if I want key access from the outside?

Depends on how you want the outside to behave. For a key that retracts the latch against a rigid pull, order the night latch function: NL on the 386 pull trim, or NL-OP on the 388 optional pull. For a lever the key locks and unlocks, that is the classroom function, L or T on the 360 trim. If the lever should always be free, take the passage versions, L-BE or T-BE. Where the outside is a pull only with no latch operation, DT or L-DT is the dummy trim, and EO is exit only with no outside trim at all. Those nine functions, EO, DT, NL, NL-OP, L, L-BE, L-DT, T and T-BE, are what the device is offered in.

6) What rim exit device should I order for a fire rated opening instead of a standard 33A/35A?

In the Von Duprin 33 and 35 Series, fire rated hardware is identified by an -F in the device name and SKU, so the fire rated build is a different call-out from the standard 33A/35A rim device. Peer devices that carry a fire rating outright include the Adams Rite 3700, a fire rated Grade 1 narrow stile rim device at 30 inches, and the Dexter ED1000-R-F-EO, a Grade 1 fire rated rim exit device. On the 36 inch side, the Orca OED85 is a 36 inch fire rated rim device in exit only, and the Marks USA M9900F is a 36 inch fire rated rim device in exit only with a panic protector end cap. The Arrow FS1250 is a 32 inch fire rated rim device for 1-3/4 inch doors. Fire rated devices do not dog, so if you were counting on the hex key dogging that comes standard on the 33A/35A to hold the latch retracted during business hours, that scheduling has to be handled another way on a fire opening.

7) Are the SDC switch bar and pressure sense bar substitutes for a Von Duprin 33A/35A rim exit device?

No, and this is the substitution that goes wrong most often. The Von Duprin 33A/35A is a mechanical rim latching device: it throws a 3/4 inch latch into a rim strike, ships with a 1439 roller strike or a 299 strike for hollow metal and wood doors, and holds the door closed on its own. The SDC MSB550 is a mechanical switch bar with electromagnetic lock release and the SDC SureExit PSB560 is a pressure sense bar with tri-failsafe technology; both are 36 inch bars that signal a separate locking device to release rather than latching the door themselves. The Securitron EMB is likewise an electromechanical exit bar. If the opening is secured by a maglock or a separate electric lock, those bars belong on it. If the opening has no other lock, the 33A/35A is what keeps the door shut.

8) What is the closest narrow stile Grade 1 rim exit device to the Von Duprin 33A/35A?

The Von Duprin 33A/35A is a 36 inch narrow stile rim exit device certified ANSI/BHMA Grade 1, built for 1-3/4 inch doors, with a 3/4 inch latch throw. The nearest peers on those same four counts are the Corbin Russwin ED4200, a Grade 1 narrow stile rim device at 36 inches for a 1-3/4 inch door, and the Falcon 19-R, a Grade 1 narrow stile rim device at 36 inches for a 1-3/4 inch door. The Detex 40 Advantex is a Grade 1 narrow stile rim device listed extra heavy duty, and the Arrow 4800 is a 36 inch narrow stile rim device for a 1-3/4 inch door. The difference a specifier feels is function breadth: the 33A/35A covers EO, DT, NL, NL-OP, L, L-BE, L-DT, T and T-BE on one device, while the ED4200 is listed as exit only and accepts trim, and the Falcon 19-R is listed exit only.

9) Which rim exit device covers a door thicker than 1-3/4 inches?

The Von Duprin 33A/35A rim device is set up for a 1-3/4 inch door, and its fastener pack runs 1-3/4 inch and 2-1/4 inch wood and metal door fasteners with an SNB. If the leaf you are working on is thicker than 1-3/4 inches, peers that publish a range are the better starting point: the Adams Rite 8800 narrow stile rim device covers 1-3/4 inch to 2-1/4 inch, the DORMA 9300 covers 1-3/4 inch to 2-1/4 inch as a Grade 1 heavy duty wide stile device, and the SDC Spectra S6136 covers 1-3/4 inch to 2 inch as a wide stile electrified rim device. The Securitron EMB electromechanical exit bar is listed at 2-1/4 inch. Measure the leaf before you commit, because trim mounting and the through-bolt length follow door thickness, not device length.

10) What exit device works on a pair of doors with no mullion, where a rim device will not?

A rim device such as the Von Duprin 33A/35A latches into a strike, so on a pair it needs a mullion between the leaves; the 33 and 35 Series covers single and double doors with mullion, and the same series is built in vertical rod and vertical cable versions for pairs, identified as 27 for surface vertical rod, 47 and 48 for concealed vertical rod, and 49 for concealed vertical cable. Among peers, the Hager 4601 is a 36 inch Grade 1 concealed vertical rod narrow stile device and the Hager 4501 is a 36 inch Grade 1 concealed vertical rod device with a wide stile pushpad, both latching top and bottom instead of into the frame. The other route on a pair is an interlocking device: the Adams Rite 8700, 8800 and EX88 are narrow stile rim devices with starwheel interlocking, and the Adams Rite 3700 is the fire rated version of that approach.

11) What are the alternatives to a Von Duprin 33A/35A for a narrow stile door?

Several narrow stile rim devices cover the same opening. The Corbin Russwin ED4200 is a Grade 1 narrow stile rim device at 36 inches for a 1-3/4 inch door and accepts trim. The Falcon 19-R is Grade 1 narrow stile at 36 inches, exit only, also 1-3/4 inch door. The BEST Precision 2401 is a non-handed narrow stile exit only device. The Detex 40 Advantex is extra heavy duty Grade 1 narrow stile where the traffic is punishing. On aluminum entrances specifically, the Adams Rite 8800 Series is narrow stile Grade 1 and covers 1-3/4 to 2-1/4 inch doors.

12) What is the difference between the Von Duprin 33A and the 35A?

Case appearance, nothing more. The 35A has a smooth mechanism case and the 33A has a grooved one, and the newer build uses a one piece center case cover. Both are the same narrow stile Grade 1 push pad device, and both are offered in the same ten finishes: 605 bright brass, 606 satin brass, 612 satin bronze, 613 oil rubbed bronze, 625 bright chrome, 626 satin chrome, 628 aluminum, 643E aged bronze, 710 dark bronze anodized and 711 flat black. If you are matching devices already hanging elsewhere in the building, match the case style first, then the finish number.

13) Does the Von Duprin 33A/35A meet the ADA 5 pound operating force requirement?

With the AX option it does. AX is the accessible version of the device, certified to the 5 lb. force requirements of the 2010 Americans with Disabilities Act and the 2013 California Building Code. It is an upgrade specified when the device is ordered rather than something added to an existing device in the field, so call it out on the order if the opening has to meet that force limit.

14) Can a 33A/35A be set up for delayed egress?

That is the CX option, Von Duprin's CHEXIT. It holds the door secure for 15 seconds after someone pushes the pad, with a nuisance alarm sounding during the delay, and it meets NFPA and IBC requirements for delayed egress. CX is an upgrade to a new device rather than a field retrofit, so it has to be specified when you order.

15) Can I tie a 33A/35A into an access control system, and can it be done to devices already installed?

Both. For monitoring, RX is the request to exit switch and LX is latchbolt monitoring, either of which reports the device's state to an access control panel or works standalone. For remote unlocking, QEL is electronic latch retraction with limited operational noise, which lets a card reader or a front desk button pull the latch back. All of these are available as retrofit kits, so devices already on the doors can be brought up without replacing them. CDSI and HDSI add a dogging indicator that shows the device status at a glance.

16) How do I keep a 33A/35A door in push-pull during business hours?

Dogging is what does that, and hex key dogging is the standard configuration on the 33A/35A. Drop the latch with the hex key and the push pad stays depressed, so the door pushes open freely until you undog it. If the staff turning it over should not be carrying a hex key, cylinder dogging keys it to your system instead. CDSI and HDSI add an indicator so anyone walking the building can see whether the device is dogged without touching it. One caution: a dogged device cannot go on a fire rated opening.

17) Is the Von Duprin 33A/35A rated for a school or hospital corridor?

That is the application it is built for. The 33A/35A is certified to ANSI/BHMA A156.3 2014 Grade 1, the top commercial grade for exit devices, and it is UL listed panic exit hardware to ANSI/UL 305 with CAN/ULC-S132 for Canada. Von Duprin builds the series for high use and abuse in institutional settings such as schools, hospitals and government facilities, and it is a commercial device, not a residential one. For standardizing a facility, the same narrow stile device covers a wide range of stile widths, which keeps one part number across mixed openings.

18) The drawing calls for a wide stile rim device. What are the equivalents to the Von Duprin 33A/35A?

The Von Duprin 33A/35A is a narrow stile device, sized for stiles as narrow as 1-3/4 inches. When the specification calls for a wide stile push pad rim device, the Grade 1 wide stile peers are the Corbin Russwin ED5200 at 36 inches for a 1-3/4 inch door, the Detex 10 Advantex at 36 inches in extra heavy duty, the TownSteel ED1100 at 36 inches in heavy duty, and the DORMA 8300 wide stile panic rim device. The BEST Precision 2101 is a 36 inch wide stile rim device as well. All of these are rim devices latching into a strike on the frame, the same mounting family as the 33A/35A, so the change is stile coverage and case footprint rather than a change in how the opening latches.

19) What do I use on a 48 inch door leaf if the 33A/35A I have is the 36 inch size?

The Von Duprin 33A/35A rim device discussed here is the 36 inch size, which suits a nominal 3 foot leaf. For a 4 foot leaf, the Dexter ED1000 is offered as a 4FT Grade 1 rim exit device, the Cal-Royal A9820 is a 48 inch rim device in exit only, the Marks USA M9900F is a 48 inch fire rated rim device in exit only, and the Corbin Russwin ED3200 is a 48 inch Grade 1 crossbar rim device for a 1-3/4 inch door. The Sargent 2828 and 3828 are Grade 1 reversible rim devices for a 48 inch minimum door width. Device length has to be sized to the leaf: a 36 inch device on a 48 inch leaf leaves push pad coverage short of the code intent for the opening.

20) I do not want to stock left hand and right hand devices. Which rim exit devices are non-handed like the Von Duprin 33A/35A?

The Von Duprin 33A/35A rim device is non-handed, and the only case that introduces handing is the SS signal switch option; on the trim side the 360L lever is field reversible. Peers that are also handing neutral are the BEST 2401, a narrow stile rim device listed exit only and non-handed, the BEST Precision 5101, a rim device with a non-handed universal design, the CRL Jackson 1295, a non-handed push pad rim device for a 1-3/4 inch door, and the Sargent 2828 and 3828, which are Grade 1 reversible rim devices. For a property manager standardizing a fleet of openings, a non-handed device means one part number on the shelf covers both swings, and only the outside trim call-out has to be matched to the door.

21) What is the alternative to a Von Duprin 33A/35A with 386NL night latch trim?

Night latch is one of the standard function call-outs on the Von Duprin 33A/35A, listed as NL with the 386 pull trim and NL-OP with the 388 optional pull, alongside EO, DT, L, L-BE, L-DT, T and T-BE. Key retracts the latchbolt, the pull itself stays rigid. The direct peer in a narrow stile case is the Sargent 8504, a Grade 1 narrow stile rim device in night latch function. In a wide stile case, the Detex V4003A/03AN is a Grade 1 wide stile rim device supplied with night latch trim. One ordering difference worth catching: the 33A/35A night latch trim is called out by hand as right hand reverse or left hand reverse even though the device body itself is non-handed.

22) Which exit bar products look like a rim exit device but will not latch or secure the opening?

Two categories catch buyers out. A dummy device such as the Detex Advantex 00, a Grade 1 super heavy duty wide stile dummy exit device, matches the look of a working device but has no latching mechanism; the Von Duprin 33A/35A covers the same appearance-only need through its DT dummy trim and L-DT lever dummy trim functions rather than a separate dummy device. The second is a component rather than a device: the Dexter ED1500-EXTRD-SP is a 12 inch extension rod assembly for ED1500 exit devices, a part that goes into an existing device. Neither will secure an opening on its own, so if you are ordering a device to actually latch a door, the 33A/35A rim device with a 3/4 inch latch throw is the working half of that comparison.

23) Which rim exit devices come ready for access control instead of adding electric latch retraction to a 33A/35A?

The Von Duprin 33A/35A takes electrification as options on the mechanical device: QEL quiet electric latch retraction, plus request to exit and latchbolt monitoring switches that feed an access control system or work standalone, and CX CHEXIT for delayed egress under NFPA and IBC. Devices built electrified from the start include the SDC Spectra S6136, a 36 inch electrified architectural rim device on a 4 inch wide stile for doors 1-3/4 inch to 2 inch, and the Dormakaba E2103 with 4908A trim, a 36 inch electrified rim device in classroom function. The Sargent 12-8810-LTRIM is a fire rated Grade 1 wide stile rim device supplied with RX and motorized electric latch retraction. Which way you go usually follows the case: a narrow stile aluminum door points back at the 33A/35A with the switch and latch retraction options, while a wide stile opening opens up the electrified peers.

24) What is a lighter duty rim exit device than the Von Duprin 33A/35A for a low traffic door?

The Von Duprin 33A/35A is certified ANSI/BHMA A156.3 2014 Grade 1 and built for high use and abuse in schools, hospitals and government facilities. On a back of house door that does not see that traffic, peers at a different rating are the Cal-Royal 5000, a 36 inch touch bar rim device listed Grade 2 heavy duty, and the Cal-Royal 5500, a 48 inch push bar rim device listed Grade 2 heavy duty. The Hager 4701 is a 36 inch standard duty rim device with Grade 1 BHMA certification, and the Design Hardware 2000R is a 33 inch standard duty wide stile rim device. Note the split those two show: standard duty and Grade 1 are separate statements, so a facility standardizing on Grade 1 across a building can still choose a standard duty case where the traffic allows.

25) Which competing rim exit devices also come with hex key dogging?

Hex key dogging is the standard dogging configuration on the Von Duprin 33A/35A, and the series also offers cylinder dogging with indicator and hex dogging with indicator for at a glance verification of device status. Among peers, the Stanley Security QED211 is a Grade 1 heavy duty narrow stile rim device with hex key dogging, and the Design Hardware 1000R is a 33 inch heavy duty rim device with hex key dogging; the Design Hardware 2000R is the standard duty rim device with hex key dogging in a wide stile case. Hex key dogging is the detail to confirm before you swap, because a maintenance crew that already carries the hex wrench for the rest of a building will not want a device that dogs by cylinder instead.

26) What is the difference between a push pad exit device like the Von Duprin 33A/35A and a crossbar device?

The Von Duprin 33A/35A is a push pad style device, with a heavy duty push pad in a narrow stile case and a projection of 3-13/16 inches off the door face. Crossbar devices operate on a horizontal bar spanning the door instead: the Corbin Russwin ED3200 is a 48 inch Grade 1 crossbar rim device for a 1-3/4 inch door in a wide stile case, and the CRL Jackson 1095 is a 48 inch crossbar rim panic device in exit only, wide stile. The CRL Jackson 1095P is the paddle version of the same series. For a building being standardized, the practical point is that push pad and crossbar do not look alike on the door and do not share trim, so mixing them across a corridor of openings shows.

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Can I return it if it doesn’t work for me?

Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.

Does the Von Duprin VON-33A-3-628 come with a warranty?

Absolutely. The Von Duprin VON-33A-3-628 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.

How do I get technical support or installation help for the Von Duprin VON-33A-3-628?

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Product Reviews

4
Secure Exit Solution

Posted by Kylie on Sep 12th 2023

The Von Duprin 33A/35A Rim Exit Device is a robust choice for security. Its durability and smooth operation are impressive. However, the installation process can be a bit complex, so professional help is recommended. Overall, it's a reliable solution for controlled exits.
5
A Reliable Exit Solution for Any Door

Posted by Steve on Mar 1st 2024

This Von Duprin 33A/35A Rim Exit Device is a game-changer. Its durability and easy installation make it a standout. However, the price might deter some buyers, but the quality compensates.
5
Smooth Exit Every Time

Posted by Owen on Sep 25th 2023

I purchased the Von Duprin 33A/35A Rim Exit Device (3-foot) from your website. What stands out is the smooth operation – it never jams. However, it could benefit from clearer installation instructions. Overall, a reliable choice for secure exits.
5
Secure Your Exit with Ease

Posted by Francis on Aug 28th 2023

Tried out the Von Duprin 33A/35A Rim Exit Device from ZenSupply. Impressed by its solid build – feels really durable. Installing it was straightforward, didn't take much time. Only thing is, it might be a bit pricier than other options. But for the quality and peace of mind, it's worth the investment.
5
Reliable Exit Device for Easy Egress

Posted by Jessica on Jul 17th 2023

Hi there, I'm Jessica! I recently bought the Von Duprin 33A/35A Rim Exit Device from ZenSupply. What I really liked is its smooth operation and durability; works like a charm for quick exits. The only drawback is that the installation can be a bit tricky without proper tools. Overall, a solid device for ensuring safety.

Von Duprin 33A/35A Rim Exit Device - 3-Foot (OLD)

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Von Duprin 33A/35A Rim Exit Device - 3-Foot (OLD)

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