Sargent 351EHTD Electromechani...
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$1,995.00
$1,658.21
SGT-351EHTD

Sargent 351EHTD Electromechanical Double Egress Door Closer-Holder with Fire-Rated Hold Open

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Model: 351 EHTD-EAB
$1,995.00
$1,658.21
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,995.00
$1,658.21
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Sargent 351EHTD Electromechanical Fire-Rated Door Closer-Holder with Adjustable Hold Open

Professional Fire-Rated Door Control Solution

The Sargent 351EHTD Electromechanical Closer-Holder provides automated fire safety compliance by closing fire and smoke rated doors when power is interrupted by fire alarm conditions. This Grade 1 certified device features adjustable holding force and single point hold open adjustable from 85° to 110°, with forged steel arm construction and aluminum alloy body for commercial durability. UL-cUL fire-rated up to 3 hours and ANSI/BHMA A156.15 Grade 1 certified for demanding applications.

Professional Features & Benefits

  • Adjustable Hold Open Range: Single point hold open adjustable from 85° to 110° for flexible door positioning and operational convenience.
  • Heavy-Duty Construction: Forged steel arm material and aluminum alloy body provide exceptional durability for commercial applications.
  • Fire Safety Integration: Designed for facilities with existing fire detection systems to automatically close doors during alarm conditions.
  • Adjustable Holding Force: Variable holding force allows easy pull or push out of hold open position for user convenience.
  • Grade 1 Performance: ANSI/BHMA A156.15 Grade 1 and A156.4 Grade 1 certified for heavy-duty commercial applications.
  • Fire Rating Compliance: UL-cUL fire-rated up to 3 hours and UL 10C certified for positive pressure fire test compliance.
  • Dual Warranty Protection: 2-year limited warranty on electromechanical track assembly and 10-year warranty on closer body for comprehensive coverage.
  • ADA Compliance: ICC A117.1 compliant design ensures accessibility code compliance for commercial installations.

Technical Specifications

  • ANSI/BHMA: Certain Models ANSI/BHMA A156.8, Grade 1 Certified
  • Arm Specification: Slide Track
  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Door Hand Direction: Non-Handed
  • Door Swing: Single or Double Acting
  • Duty Level: Medium Duty
  • Fasteners: Torx Screws Optional
  • Grade: Grade 1
  • Mounting Method: Concealed
  • Product Category: Door Controls
  • Product Function: Stop
  • Product Group: Door Controls
  • Product Subgroup: Overhead Stops and Holders
  • Product Type: Overhead Stops and Holders - Concealed Mount
  • Series: 6ADJ Series
  • Subcategory: Concealed
  • Warranty: 2 Year Limited

Installation & Operation

  1. Verify electrical requirements match available power supply and confirm integration compatibility with existing fire alarm system.
  2. Disconnect power supply before beginning installation. Follow all applicable electrical codes and safety procedures.
  3. Mount the unit in the specified location ensuring adequate clearance for wiring access, ventilation, and future service requirements.
  4. Route and connect wiring according to manufacturer wiring diagrams. Use appropriate wire gauge and connectors for the application.
  5. Configure operational settings including hold open angle (85° to 110°) and holding force adjustment per application requirements.
  6. Restore power and test all functions including normal operation, fire alarm integration, and manual release operation.
  7. Complete final inspection and document settings. Refer to manufacturer documentation for complete wiring diagrams, programming instructions, and troubleshooting.

Professional Applications

  • Fire-Rated Door Assemblies in Commercial Buildings
  • Healthcare Facility Fire Safety Systems
  • Educational Institution Emergency Egress
  • Office Building Fire Compartmentalization
  • Industrial Facility Fire Protection
  • Multi-Tenant Residential Fire Safety
  • Government Building Life Safety Systems

Why Choose Sargent Quality?

Sargent 351EHTD Series closer-holders deliver professional-grade fire safety performance with forged steel and aluminum alloy construction rated for Grade 1 commercial applications. Comprehensive dual warranty coverage includes 2-year limited warranty on electromechanical components and 10-year warranty on closer body. Engineered for demanding commercial fire safety applications where reliable automated door control is essential for life safety compliance.

Manufacturer Resources

SARGENT Full Line Catalog

Product Specs

Series:
351EHTD
Product Type:
Electrified Door Closers
Grade:
Grade 1
Duty Level:
Heavy Duty
Product Group:
Door Controls
Product Subgroup:
Door Closers - Electromechanical (Fire and Life Safety)
Subcategory:
Electrified Closers and Holders
Commercial/Residential:
Commercial
Electronic:
Yes
ADA Compliant:
No
Delay Function:
Yes
Mounting Method:
Surface
Product Category:
Door Controls
Department:
Door Hardware

Sargent 351 EHTD-EAB – Frequently Asked Questions

1) What happens to a Sargent 351EHTD closer-holder when the fire alarm goes off or the power drops?
The 351EHTD releases the door out of hold open and closes it whenever power is interrupted, which is how it gets a fire or smoke rated opening closed under alarm conditions. It is an electromechanical unit, so it has to be tied into an existing fire detection system and a power supply to do that job. Nothing about the release is manual or optional, cut the power and the door closes.
2) How far open will the Sargent 351EHTD hold a door, and can I change the angle?
Single point hold open, adjustable anywhere from 85 to 110 degrees. You set the angle at install, so if the door needs to sit tight against a wall at 110 or stop short at 85 to clear a corridor, both are inside the range. Holding force is adjustable too, so staff can pull or push the door out of hold open without waiting for the alarm.
3) Do I have to specify handing when I order a Sargent 351EHTD?
Yes, handing is a required choice, left hand or right hand. The 351EHTD is a double egress closer-holder, so pick the hand off the leaf you are actually hanging it on. Get it wrong and the unit will not mount correctly on that door.
4) Is the Sargent 351EHTD fire rated, and to what?
UL and cUL fire rated up to 3 hours, and UL 10C certified for positive pressure fire testing. That is the rating an inspector looks for on a closer-holder sitting on a rated corridor or stair door assembly.
5) What do I need on site before installing a Sargent 351EHTD?
Power and a fire alarm connection. The 351EHTD is an electromechanical unit that releases on loss of power, so before it does anything you need a supply that matches its electrical requirements and an interface to the building's existing fire detection system. Confirm both before the closer goes on the door, an EHTD wired to nothing is just a closer that will not hold. The arm runs in a slide track, so the track has to be mounted and aligned as part of the same install.
6) What is the closest equivalent to a Sargent 351EHTD electromechanical closer-holder from another manufacturer?
The Norton Rixson Smok-Chek V is the nearest peer. Like the Sargent 351EHTD, it is an electrified door closer and holder built to release the door on a fire alarm signal, so it covers the same job on a fire or smoke rated opening: hold the door open in normal use, close it when the holding circuit drops. The 351EHTD is a surface mounted, Grade 1, heavy duty electronic closer with a delay function. If a project is specified around Smok-Chek V hardware and you want to stay on Sargent, the 351EHTD is the part to quote against it.
7) The door already has a closer on it and I only need it to hold open and release on the alarm. Do I need a full closer-holder?
No. Where a working closer is already mounted and only the alarm-release hold open is missing, the Norton Rixson Checkmate 99 is an electrified door holder with fire safety integration - it holds and releases, and leaves the closing to the closer already on the door. The Sargent 351EHTD combines both functions in one unit, closer and holder together, so it is the choice when the existing closer is also being replaced or when there is no closer on the opening at all. Property managers replacing magnetic holders across a corridor usually land on the holder-only route; a full door control replacement lands on the 351EHTD.
8) Can I substitute a Norton Rixson Checkmate 99 for a Sargent 351EHTD?
Not on a one for one basis. The Checkmate 99 is a door holder - it holds the door open and releases it on the fire alarm, but it does not control the door's closing cycle. The Sargent 351EHTD is a closer and holder in one, a heavy duty electronic unit with a delay function for openings that need the swing controlled as well as held. Swapping a holder in where a closer-holder was specified leaves the opening without a closer, which on a fire rated door assembly is the part the inspector looks for. Pair the holder with a separate closer, or use the 351EHTD.
9) Is the Sargent 351EHTD Grade 1?
Grade 1, certified to ANSI/BHMA A156.15 and A156.4. For an institutional or MRO spec that calls out Grade 1 door controls on rated openings, the 351EHTD meets it on both standards.
10) What is delayed action on the Sargent 351EHTD and do I need it?
Delayed action holds the door near full open for a few moments before the closing cycle begins, and it is an option you pick at order time, yes or no. Worth taking on healthcare and multi family openings where people move carts, beds, or luggage through and need the door to stay out of the way after normal use. On a straightforward office corridor door you can skip it. Both versions are offered in all five finishes.
11) What finishes does the Sargent 351EHTD come in, and will it match my other closers?
Five sprayed enamel finishes: EAB sprayed brass, EN sprayed aluminum, EP sprayed bronze enamel to match satin bronze, EB sprayed bronze enamel to match dark satin bronze, and ED sprayed bronze enamel to match dark statuary bronze. Three of those are formulated to match a specific bronze tone, so if a building already runs dark statuary bronze hardware, ED is the one that keeps the openings consistent. There is no plated or brushed metal finish in the range, these are all enamel.
12) Should I use an electrified closer-holder or a separate door closer and magnetic holder?
A closer-holder like the 351EHTD puts both jobs in one unit on the door, so there is one thing to mount, one thing to wire, and the release point is fixed at the hold open angle you set between 85 and 110 degrees. A separate electromagnetic holder mounted on the wall or floor lets you hold the door at whatever angle the wall happens to be, which matters when the door needs to sit fully flat against a corridor wall past the closer's range. Norton Rixson's Checkmate 99 Series is the electrified door holder route if you want the holding function separate from the closer.
13) What else can I put on a fire door instead of the Sargent 351EHTD?
Two other electrified closer-holders sit in the same slot. The Norton Rixson Smok-Chek V is a closer and holder with fire safety release, the closest like for like swap in function. The Norton Rixson 7700 Power Track Series is the other electrified closer with hold open. If the specification names Grade 1 to ANSI/BHMA A156.15 and A156.4 and a UL/cUL rating up to 3 hours, the 351EHTD is the one carrying those on record.
14) Can the Sargent 351EHTD go on a double acting door?
Yes. It is listed for single or double acting swing and it is a double egress unit, so it works on the paired opposite swinging leaves you find in hospital and school corridors. Each leaf takes its own unit and its own hand.
15) What is the difference between the Sargent 351EHTD and the Norton Rixson 7700 Power Track series?
Both are electrified closers with a hold open feature, so both will hold a door open and release it when the holding power is cut. The Norton Rixson 7700PT is the Power Track series. The Sargent 351EHTD is a surface mounted heavy duty Grade 1 electromechanical closer-holder, offered with or without the delayed action option and in sprayed enamel finishes including EAB brass, EB and ED bronze, EN aluminum, and EP satin bronze, with left hand and right hand handing selected at order. Both are legitimate answers on a fire rated opening; the decision usually comes down to which line the rest of the building's door control is standardized on.
16) Which electrified closer should I use if the opening is a double egress pair?
The Sargent 351EHTD is built for double egress openings and is a surface mounted heavy duty unit, so it takes the pair directly with handing called out left hand or right hand for each leaf. Among the alternatives, the Norton Rixson Smok-Chek V is also an electrified closer and holder with fire safety release and the 7700PT Power Track is an electrified closer with hold open, but on a double egress pair the handing has to be resolved leaf by leaf whichever line you use. Order two units and specify the hand of each.
17) What is the metal cover option on a Sargent 351EHTD closer-holder?
A metal cover is a required yes or no choice on the order. Take the metal cover on openings that see abuse, schools, dorms, back of house corridors, where a plastic cover gets knocked off or walked away. Skip it where the closer is out of reach or out of traffic.
18) What is the Sargent 351EHTD arm and body made of?
Forged steel arm on an aluminum alloy body. That is the construction behind the Grade 1 commercial rating, and it is what you want on a door that cycles all day in a school or hospital corridor rather than a light interior office opening.
How fast can I get the Sargent 351 EHTD-EAB 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 Sargent 351 EHTD-EAB come with a warranty?
Absolutely. The Sargent 351 EHTD-EAB 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 Sargent 351 EHTD-EAB?
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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