Marks USA M9900KDEP Delayed Eg...
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$2,906.72
Marks USA M9900KDEP Delayed Egress Rim Device w/ Keyswitch - 602 Power Supply

Marks USA M9900KDEP Delayed Egress Rim Exit Device with Keyswitch and 602 Power Supply

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Model: M9900KDEP-32D
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$4,142.80
$2,906.72
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Marks USA M9900KDEP Delayed Egress Rim Exit Device with Keyswitch and 602 Power Supply

The Marks USA M9900KDEP is a heavy-duty Grade 1 delayed egress rim exit device featuring an integrated keyswitch and 602 power supply, engineered for high-impact institutional and commercial applications including schools, universities, and retrofit installations. Built on the proven Marks X-it' M9900 platform, this device delivers a configurable 15 or 30 second exit delay with 1 or 2 second nuisance delay, audible alarm, and visual display countdown — all in a durable cast chassis designed for 1-3/4" door thickness. Certified to ANSI 156.3 (2001) Grade 1 and UL Listed for Panic Hardware, the M9900KDEP provides the reliability and compliance demanded by institutional security professionals.

Key Features

  • Delayed Egress Timing: Selectable 15 or 30 second exit delay with 1 or 2 second nuisance delay (2 minutes) for flexible code-compliant egress control in institutional environments.
  • User PIN Code Control: PIN codes may be assigned to 1, 2, or all control functions including reset, sustained bypass, and momentary bypass (RES) for versatile access management.
  • Audible Alarm & Voice Release: Integrated audible alarm with voice release time, warning, or safety message capability to alert occupants and staff during egress events.
  • Visual Display: Countdown display with locked/unlocked status and egress executed indication provides clear real-time feedback at the door.
  • Heavy-Duty Cast Chassis: Superior durability construction with smooth reduced-projection touchbar assembly that minimizes catch hazards in high-traffic corridors.
  • Panic Protector End Cap: Mitered steel flush-mounted Panic Protector End Cap prevents end cap breakage from cart and equipment abuse common in institutional settings.
  • Door Thickness Compatibility: Designed for 1-3/4" door thickness, retrofitting all popular door preps for straightforward installation in existing openings.
  • Marks Lifetime Mechanical Warranty: Backed by the Marks Lifetime Mechanical Warranty for long-term confidence in demanding commercial and institutional deployments.

Certifications & Compliance

  • ANSI 156.3 (2001), Grade 1
  • UL Listed for Panic Hardware
  • Marks Lifetime Mechanical Warranty

Technical Specifications

  • Product Group: Exit Devices and Trim
  • Product Subgroup: Exit Devices - Rim
  • Subcategory: Exit Devices - Rim
  • Product Type: Exit Devices - Rim
  • Features: Marks Lifetime Mechanical Warranty, Easy Installation, Economical, Touchbar
  • Application: Schools, Universities and Other Institutional or Commercial Buildings and Retrofit all Popular Preps
  • Standards: ANSI 156.3 (2001), Grade 1: UL Listed For Panic Hardware
  • For Door Thickness: 1-3/4"
  • ADA Compliant: No
  • Product Function: Exit Only
  • Fire Rating: No
  • Installation Category: Wall Mount
  • Product Category: Exit Devices and Trim
  • Department: Door Hardware

Typical Applications

  • Schools and K-12 Educational Facilities
  • Universities and Higher Education Campuses
  • Institutional and Government Buildings
  • Commercial Office Buildings
  • Healthcare Facilities and Hospitals
  • Retail and Multi-Tenant Commercial Properties
  • Industrial and Warehouse Facilities Requiring Egress Control

Why Marks USA M9900KDEP?

Marks USA M9900 series exit devices are built on a heavy-duty cast chassis with a Grade 1 rating and UL Listing for Panic Hardware, delivering the structural integrity and code compliance required for the most demanding institutional environments. The M9900KDEP's configurable delayed egress timing, PIN code control, audible alarm, and visual display make it a comprehensive access management solution backed by the Marks Lifetime Mechanical Warranty — ensuring professional-grade performance and long-term value in schools, universities, and commercial buildings.

Manufacturer Resources

Marks USA Product Catalog

Product Specs

Product Group:
Exit Devices and Trim
Product Subgroup:
Exit Devices - Rim
Commercial/Residential:
Commercial
Subcategory:
Exit Devices - Rim
Product Type:
Exit Devices - Rim
Features:
Marks Lifetime Mechanical Warranty, Easy Installation, Economical, Touchbar
Application:
Schools, Universities and Other Institutional or Commercial Buildings and Retrofit all Popular Preps
Standards:
ANSI 156.3 (2001), Grade 1; UL Listed For Panic Hardware
For Door Thickness:
1-3/4"
ADA Compliant:
No
Product Function:
Exit Only
Fire Rating:
No
Installation Category:
Wall Mount
Product Category:
Exit Devices and Trim
Department:
Door Hardware

Marks USA M9900KDEP-32D – Frequently Asked Questions

1) Will the Marks USA M9900KDEP delayed egress device work on a 2-inch thick door?
No. The M9900KDEP is built for 1-3/4 inch doors only, which is the standard commercial door thickness. If your openings run thicker, look at a device with a stated range instead, like the Dormakaba 9300 Series rim device (1-3/4 inch to 2-1/4 inch) or the SDC S6000 Series electrified rim device (1-3/4 inch to 2 inch).
2) How does a delayed egress exit device actually behave when someone pushes the bar?
Pushing the touchbar on the M9900KDEP starts a nuisance delay of 1 or 2 seconds to filter out accidental contact. If pressure is held, the device begins a 15 or 30 second exit delay (selectable), sounds its audible alarm, and runs a countdown on the visual display showing locked/unlocked status. When the timer expires the door releases and the display indicates egress executed. Staff can reset it or bypass it, momentarily or sustained, at the integrated keyswitch or by PIN code.
3) Does the M9900KDEP come with the power supply, or do I have to order one separately?
The 602 power supply is part of the M9900KDEP package along with the integrated keyswitch. You are still responsible for running power to the door and for any building fire alarm interface your local code requires on a delayed egress opening.
4) I am replacing an existing rim panic on a school corridor door. Will the Marks M9900KDEP fit the prep that is already there?
The M9900 platform is built to retrofit all popular door preps, so on a 1-3/4 inch door already prepped for a rim exit device it generally drops in. What changes with the KDEP version is power: it is an electrified delayed egress device, so the opening needs a power run for the 602 supply that a straight mechanical panic did not require.
5) What is the closest alternative to the Marks USA M9900KDEP if the opening needs a fire rating?
The M9900KDEP carries no fire rating, so on a fire-rated opening look at a labeled rim device instead. The Dexter ED1000-R-F-EO is a Grade 1 fire rated rim exit device, the Arrow FS1250 is a fire rated 32 inch rim device, and the Orca Hardware OED85 Series is a 36 inch fire rated rim device in an exit only function. Note that those are mechanical panic devices without the delayed egress timing, keyswitch and alarm the M9900KDEP provides, so a fire-rated opening that also needs egress delay has to be solved with a listed electrified assembly rather than a direct swap.
6) What else should I look at if I want electrified exit hardware rather than the Marks USA M9900KDEP delayed egress device?
The M9900KDEP is a delayed egress rim device with an integrated keyswitch and 602 power supply, built for exit only service on 1-3/4 inch doors. Other electrified bar options include the SDC Spectra S6136, a 36 inch electrified architectural rim exit device with a 4 inch wide stile that fits 1-3/4 to 2 inch doors; the SDC SureExit PSB560, a 36 inch pressure sense bar with tri-failsafe technology for narrow or wide stile; the SDC MSB550, a 36 inch mechanical switch bar used with an electromagnetic lock release; and the Securitron EMB electromechanical exit bar, which is listed for 2-1/4 inch doors. The switch bars and sense bars signal a separate locking device, while the M9900KDEP holds and times the egress at the device itself.
7) If the opening does not need delayed egress, what plain Grade 1 rim device covers the same duty as the Marks USA M9900KDEP?
For a straight mechanical panic exit on the same class of institutional opening, the Von Duprin 22-3FT is a Grade 1 non-handed 36 inch wide stile pushpad rim device for 1-3/4 inch doors, matching the M9900KDEP's 1-3/4 inch door thickness. Corbin Russwin ED5200 is a Grade 1 36 inch wide stile rim device for 1-3/4 inch doors in an exit only function that also accepts trim, and the Corbin Russwin ED2200 is a Grade 1 36 inch wide stile exit only rim device. Detex 10 Advantex is a Grade 1 extra heavy duty 36 inch wide stile rim device. All are mechanical only, with none of the timing, PIN control, alarm or countdown display of the M9900KDEP.
8) Is a rim device like the M9900KDEP the right choice for a pair of doors?
A rim device latches into a strike on the frame or on a mullion, so on a pair you need a removable mullion for the M9900KDEP to latch against. If you cannot use a mullion, go to a vertical rod device instead, which latches at the head and sill: the Hager 4501 wide stile or 4601 narrow stile concealed vertical rod devices cover that case.
9) I just need exit alarm or electric release, not a full delayed egress. What else is there?
If the goal is signaling a maglock or access control rather than holding someone at the door, an exit bar is simpler than the M9900KDEP delayed egress device. The SDC MSB550 Series mechanical switch bar releases an electromagnetic lock, and the SDC SureExit PSB560 pressure sense bar uses tri-failsafe technology. Both are offered for narrow or wide stile doors. Choose the M9900KDEP only when code and your security plan actually call for a 15 or 30 second held delay with alarm and countdown.
10) Can I restrict who is allowed to bypass or reset the delayed egress at the door?
Yes. PIN codes on the M9900KDEP can be assigned to one function, two functions, or all of them, covering reset, sustained bypass, and momentary bypass. That lets you give custodial staff reset rights while limiting sustained bypass to security, and the integrated keyswitch gives a separate key controlled override.
11) The Marks USA M9900KDEP is exit only. What rim device should I order if the door also needs outside key or lever entry?
The M9900KDEP is an exit only device with a keyswitch for delay control, not an outside entry trim. For an opening that needs outside access, the Corbin Russwin ED5200 and ED4200 are Grade 1 devices listed as exit only or accepts trim for 1-3/4 inch doors, with the ED5200 in wide stile and the ED4200 in narrow stile. The Sargent 8504 is a Grade 1 narrow design rim device in night latch function, and the Dormakaba E2103 is a 36 inch electrified rim device supplied with 4908A trim in a classroom function.
12) We are standardizing exit hardware across a campus. What Grade 1 rim devices pair with the Marks USA M9900KDEP on the doors that do not need egress delay?
The M9900KDEP is a Grade 1 touchbar rim device for 1-3/4 inch doors intended for schools, universities and other institutional buildings. On companion openings, Grade 1 wide stile touchbar rim devices that carry the same grade include the TownSteel ED1100 and ED9700 in 36 inch heavy duty, the Dormakaba DORMA 8300 Series, the Hager 4701 Series 36 inch rim device with Grade 1 BHMA certification, and the Imperial USA ED-501 36 inch Grade 1 rim panic device in exit only. For 48 inch leaves, the Sargent 2828 and 3828 are Grade 1 reversible rim devices for 48 inch doors and the Dormakaba 9300 Series is a Grade 1 heavy duty 48 inch wide stile exit only device fitting 1-3/4 to 2-1/4 inch doors.
13) Can I substitute a Cal-Royal rim device for the Marks USA M9900KDEP on a spec calling for ANSI Grade 1?
Check the grade before you do. The M9900KDEP is certified to ANSI 156.3 (2001) Grade 1 and UL Listed for Panic Hardware. The Cal-Royal 5000 36 inch and 5500 48 inch heavy duty rim devices are Grade 2, and the Cal-Royal A9800 and A9820 are also listed as Grade 2. If the drawing calls for Grade 1, look instead at devices carrying a Grade 1 listing such as the Corbin Russwin ED2200, the Von Duprin 22-3FT or the Detex 10 Advantex. None of those carry delayed egress, so a Grade 1 spec that also requires egress delay still points back to the M9900KDEP.
14) What finish does the Marks M9900KDEP delayed egress device come in?
US32D satin stainless steel, the standard institutional finish, so it matches most existing commercial exit hardware and door pulls in schools and healthcare corridors.
15) Will the touchbar end cap hold up to carts banging into it?
That is what the Panic Protector end cap is for. It is a mitered steel flush mounted cap that resists the end cap breakage carts and equipment cause in institutional corridors, and the touchbar assembly has reduced projection so there is less to catch on. The chassis itself is cast, not stamped.
16) Is there a crossbar style alternative to the Marks USA M9900KDEP touchbar?
Yes, if the look or the maintenance standard calls for a crossbar rather than a touchbar. The M9900KDEP uses a reduced-projection touchbar assembly on a cast chassis. Crossbar options include the Corbin Russwin ED3200, a Grade 1 48 inch wide stile crossbar rim device supplied as a panic device only for 1-3/4 inch doors, and the CRL Jackson 1095 Series 48 inch crossbar rim panic device in wide stile, exit only. CRL Jackson also offers the 1095P in a paddle release and the 1295 Series non-handed push pad version for 1-3/4 inch doors.
17) Will a Marks USA M9900KDEP work on a wood door?
The M9900KDEP is specified for 1-3/4 inch doors and retrofits popular door preps in institutional and commercial buildings. Among comparable rim devices, the ones explicitly listed as wood door compatible are the Adams Rite 3700 Series fire rated narrow stile device and the Adams Rite 8700 Series narrow stile device. The Adams Rite 8800 Series is listed as not wood door compatible, as are most of the wide stile devices in the class, so confirm the leaf material against the device before ordering for a wood opening.
How fast can I get the Marks USA M9900KDEP-32D 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 Marks USA M9900KDEP-32D come with a warranty?
Absolutely. The Marks USA M9900KDEP-32D 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 Marks USA M9900KDEP-32D?
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
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