Command Access VDREXKIT-ED Fie...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$95.22
$63.21
Command Access VDREXKIT-ED Field Installed REX Switch Kit Von Duprin 98/99 and 33/35 Series Exits

Command Access VDREXKIT-ED Field Installed REX Switch Kit for Von Duprin 98/99 and 33/35 Series Exit Devices

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Model: VDREXKIT-ED

In Stock (leaves warehouse same day if ordered before 3pm ET)

$95.22
$63.21
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Command Access Field Installed REX Switch Kit for Von Duprin 98/99 and 33/35 Series Exit Devices

Professional Request to Exit Switch Solution

The Command Access VDREXKIT-ED provides a field-installable SPDT request to exit switch specifically designed for Von Duprin 33/35 and 98/99 series exit devices. This electronic access control kit operates at 0.5A 24VAC/DC and includes all necessary components for professional installation including REX switch, label, mounting hardware, and drill bit.

Professional Features & Benefits

  • Series Compatibility: Specifically designed for Von Duprin 33/35 and 98/99 series exit devices for precise fit and reliable operation.
  • SPDT Switch Configuration: Single pole double throw design with normally open and normally closed contacts for flexible wiring configurations.
  • Standard Power Requirements: 0.5A 24VAC/DC operation compatible with most access control systems and power supplies.
  • Complete Installation Kit: Includes REX switch, identification label, Phillips screws, and 9/64 drill bit for field installation.
  • Color-Coded Wiring: Green/Black common, Blue/Black normally open, and Grey/Black normally closed connections for simplified wiring identification.
  • Field Installable Design: Retrofit capability allows addition of REX functionality to existing exit device installations without device replacement.

Technical Specifications

  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Electronic: Yes
  • Parts and Accessories Type: Replacement Parts
  • Product Attribute: Parts and Accessories
  • Product Category: Electronic Access Controls
  • Product Group: Electronic Access Controls
  • Product Subgroup: Sensors, Switches, Relays and Timers
  • Product Type: Parts and Accessories
  • Series: VDREXKIT-ED Switch kits
  • Subcategory: Accessories

Professional Applications

  • Commercial Building Security Systems
  • Retail Loss Prevention
  • Healthcare Facility Access Control
  • Educational Institution Safety Systems
  • Industrial Facility Monitoring
  • Emergency Exit Compliance
  • Government and Municipal Buildings

Why Choose Command Access Quality?

Command Access electronic access control components deliver professional-grade reliability with precise engineering for specific exit device compatibility. The VDREXKIT-ED provides field-installable REX functionality with complete installation hardware and clear wiring identification for demanding commercial applications where dependable performance is essential.

Manufacturer Resources

Command Access Catalog

Product Specs

Product Group:
Electronic Access Controls
Series:
VDREXKIT-ED Switch kits
Product Subgroup:
Sensors, Switches, Relays and Timers
Product Type:
Parts and Accessories
Subcategory:
Accessories
Commercial/Residential:
Commercial
Electronic:
Yes
Parts and Accessories Type:
Replacement Parts
Product Attribute:
Parts and Accessories
Product Category:
Electronic Access Controls
Department:
Door Hardware

Command Access VDREXKIT-ED – Frequently Asked Questions

1) Will the Command Access VDREXKIT-ED REX kit fit a Von Duprin 33 or 35 series exit device?
Yes. The VDREXKIT-ED is built for Von Duprin 33/35 and 98/99 series devices only. It is not a universal REX switch, so if the device on the door is another Von Duprin family or another brand entirely, this kit is the wrong part.
2) Can I add request-to-exit signaling to an exit device already installed on the door, or do I have to replace the device?
The kit is field installable on an existing device, which is the whole point of it. The switch mounts into the exit device already hanging on the opening, so a Von Duprin 98/99 or 33/35 that is otherwise fine stays on the door. Plan on pulling the cover to route the wire and get the switch positioned.
3) Is the VDREXKIT-ED REX switch normally open or normally closed?
Both. It is an SPDT switch, so you get a normally open and a normally closed contact off one common and can wire it either way depending on what your access control panel or monitoring input expects. The leads are color coded: green/black is common, blue/black is normally open, grey/black is normally closed.
4) What is the switch rating on the Command Access VDREXKIT-ED, and will it work with my 24V access control power supply?
The REX switch is rated 0.5A at 24VAC or 24VDC. That covers a dry-contact signal back to a controller, a card access panel input, or a low-current relay coil. It is a signaling switch, not a device that will carry maglock or strike current directly, so run the lock power through a relay rather than through this switch.
5) What comes in the Command Access VDREXKIT-ED kit, and do I need anything else to install it?
The kit ships with the REX switch, an identification label, Phillips screws for mounting, and a 9/64 drill bit for the mounting holes. What it does not include is the wire run itself: you still supply the cable back to the panel, any door loop or electric hinge to get across the opening, and the relay if you are switching a lock.
6) Is a DynaLock 6451-36 exit sensor bar an alternative to the Command Access VDREXKIT-ED REX switch kit?
They signal request to exit in different ways and are not interchangeable. The VDREXKIT-ED is a field installed SPDT switch that mounts inside a Von Duprin 33/35 or 98/99 series exit device, so the exit signal comes from the pushpad itself and the door keeps the exit device it already has. The DynaLock 6451-36 is an exit sensor bar sized for a 36 inch door, which is its own mounted bar on the door face rather than a switch added into an existing Von Duprin device. If the opening already carries a Von Duprin 33/35 or 98/99 device and you want the REX taken from that device, the VDREXKIT-ED is the part that does it.
7) Do I need to drill into the Von Duprin device to mount this REX switch?
Yes, and the kit supplies the bit. Mounting is a drilled-and-screwed installation using the included 9/64 drill bit and Phillips screws, done inside the device. That means it is a permanent modification to the exit device, so confirm the device is a 98/99 or 33/35 before the bit touches metal.
8) Should I use a REX switch in the exit device or a separate pushbutton or sensor bar for request to exit?
Put the switch in the device when the egress motion you want to detect is somebody pushing the exit bar. The VDREXKIT-ED signals the moment the Von Duprin touchbar is depressed, so the shunt is tied to the actual act of leaving and there is no second thing on the wall to press. A wall pull station or a separate sensor bar is the better call when the door has no exit device to host a switch, or when you need an obvious operator the public can find. For a bar-mounted alternative on a door without a Von Duprin device, the DynaLock 6451-36 exit sensor bar is a 36 inch door option.
9) Does the VDREXKIT-ED release the lock by itself, or do I still need something to cut power to the magnet?
It only signals. The SPDT contacts tell your controller or relay board that egress was requested, and something downstream does the actual releasing. On a maglock opening you typically feed that contact into a relay board, such as the Locknetics RDB4 four-output relay distribution board, and let the relay drop the lock power.
10) I have Von Duprin exit devices on several doors in the building. Can I use one part number across all of them?
Only where the devices are 98, 99, 33, or 35 series. Within that mix the VDREXKIT-ED is a single part number that covers all four, which makes standardizing across a run of openings straightforward. Walk the doors and read the model off each device first, because any opening with a different device family needs a different solution.
11) Can an Adams Rite 4605 transformer be used in place of a Command Access VDREXKIT-ED REX switch kit?
No, those parts do different jobs in the same access control circuit. The VDREXKIT-ED is the switch that reports the exit device has been pushed, wired through green/black common, blue/black normally open, and grey/black normally closed, and it operates at 0.5A 24VAC/DC. The Adams Rite 4605 is a regular transformer that takes 115 VAC down to 12/24 VAC with a 40 volt-amp output, so it is a power supply feeding a circuit rather than a contact within one. A door being fitted for monitored egress typically needs both roles filled, not one instead of the other.
12) What do I use to get switch wiring from the door frame into the door instead of a Command Access VDREXKIT-ED?
The RCI 9500/9501 series mortise pin transfer is the part that carries conductors between frame and door, with a tamper resistant design rated 1.5A 24VAC. The VDREXKIT-ED does not perform that transfer; it is the SPDT request to exit switch installed into a Von Duprin 33/35 or 98/99 exit device, supplied with the switch, label, Phillips screws, and a 9/64 drill bit, and rated 0.5A 24VAC/DC. On a monitored exit device the two commonly appear on the same opening, the switch inside the device and the transfer at the hinge edge.
13) Is this REX kit rated for commercial use in a hospital or school?
The VDREXKIT-ED is a commercial-duty electronic access control component, and healthcare and education access control are among its intended uses along with retail, industrial, and government facilities. It is the switch that tells the access control system someone pushed the bar from the inside, so the door reads as a legitimate egress rather than a forced open.
14) Is the Command Access VDREXKIT-ED a repair part or an upgrade kit?
Both readings are fair. It is catalogued as a replacement part, so it is what you order when a REX switch inside a Von Duprin 98/99 or 33/35 has failed, and it is equally what you order to add REX monitoring to a device that never had it.
15) Will an RCI 914 delayed egress sounder do what the Command Access VDREXKIT-ED does?
They address different halves of an egress problem. The RCI 914 series is a delayed egress sounder with field selectable volume output up to 102dB, so it is an audible annunciation device. The VDREXKIT-ED is a dry contact device: an SPDT switch with normally open and normally closed contacts, field installed into a Von Duprin 33/35 or 98/99 series exit device to signal request to exit to the access control system. If the requirement is an audible local alarm at the door, the 914 covers it; if the requirement is telling the controller the pushpad was operated, the VDREXKIT-ED covers it.
16) Is the Securitron SB-MXD exit delay sex bolt a substitute for the Command Access VDREXKIT-ED?
No. The Securitron SB-MXD is an exit delay sex bolt, a through bolt fastener used in mounting hardware to the door. The VDREXKIT-ED is a complete field installed REX switch kit for Von Duprin 33/35 and 98/99 series exit devices and already ships with its own Phillips screws and a 9/64 drill bit for the installation, so no separate through bolt is part of adding the switch to the device.
How fast can I get the Command Access VDREXKIT-ED delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
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 Command Access VDREXKIT-ED come with a warranty?
Absolutely. The Command Access VDREXKIT-ED 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 Command Access VDREXKIT-ED?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Command Access VDREXKIT-ED from ZenSupply?
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