Norton Rixson 993M Electromagn...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,365.00
$936.80
Norton Rixson 993M Electromagnetic Door Holder with 275 lbs Holding Force and Switch

Norton Rixson 993M Electromagnetic Door Holder with 275 lbs Holding Force and Switch

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Model: RIX-993M 689
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,365.00
$936.80
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Norton Rixson 993M Electromagnetic Door Holder with 275 lbs Holding Force and Switch

High-Hold Wall Mounted Electromagnetic Door Control Solution

The Norton Rixson 993M electromagnetic door holder delivers professional-grade door control with 275 lbs holding force for heavy-duty commercial applications. This wall-mounted unit features 24VAC/DC operation with fail-safe power failure release and includes an integrated switch box measuring 4-1/2" x 4-9/16" x 2-1/2" deep. UL-cUL fire-rated up to 3 hours with adjustable armature rotation for precise alignment and consistent magnet contact.

Professional Features & Benefits

  • High Holding Force: 275 lbs holding capacity provides secure door retention for heavy commercial doors and high-traffic applications.
  • Adjustable Armature Design: Armature rotation adjusts up and down, back and forth for optimal alignment and consistent contact with magnet assembly.
  • Fail-Safe Operation: Power failure automatically releases door to close, ensuring fire safety compliance and emergency egress functionality.
  • Integrated Switch Box: Includes 4-1/2" x 4-9/16" x 2-1/2" deep switch box with test switch for operational verification and system integration.
  • Flexible Power Options: 24VAC/DC voltage operation accommodates various building electrical systems and control configurations.
  • Fire-Rated Construction: UL-cUL fire-rated up to 3 hours for code compliance in fire-rated door assemblies and life safety applications.
  • Heavy-Duty Construction: Armature plate thru-bolted design maintains consistent contact with magnet for reliable long-term performance.
  • Manufacturer Warranty: 2 year limited warranty provides added confidence and protection for commercial installations.

Technical Specifications

  • Application: Commercial Doors
  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Door Hand Direction: Non-Handed
  • Electronic: Yes
  • Mounting Method: Wall
  • Product Category: Door Controls
  • Product Finish: Aluminum
  • Product Group: Door Controls
  • Product Subgroup: Electromagnetic Door Holder / Releases
  • Product Type: Electromagnetic Door Holder / Releases
  • Product Voltage: 24VAC/DC
  • Subcategory: Electromechanical Closers & Holders
  • UL Listing Type: UL-cUL Fire-Rated Up to 3 Hours
  • Warranty: 2 Year Limited
  • Wiring: Concealed or Surface

Installation & Operation

  1. Verify electrical requirements match available power supply. Confirm 24VAC/DC voltage and current capacity before proceeding.
  2. Disconnect power supply before beginning installation. Follow all applicable electrical codes and safety procedures.
  3. Mount the unit in the specified wall location ensuring adequate clearance for wiring access, ventilation, and future service requirements. Note that substantial wall reinforcement is required for proper installation.
  4. Route and connect wiring according to manufacturer wiring diagrams. Use appropriate wire gauge and connectors for the application with concealed or surface wiring options.
  5. Configure operational settings including fail-safe operation and integrate with key switch release system per application requirements.
  6. Restore power and test all functions including normal holding operation, test switch functionality, and integration with alarm or smoke detector release systems.
  7. Complete final inspection and document settings. Refer to manufacturer documentation for complete wiring diagrams, programming instructions, and troubleshooting.

Professional Applications

  • Commercial Building Fire Safety Systems
  • Healthcare Facility Door Control
  • Educational Institution Safety Systems
  • Industrial Facility Access Control
  • Multi-Tenant Residential Fire Compliance
  • Government and Municipal Building Safety
  • Emergency Egress Door Management

Why Choose Norton Rixson Quality?

Norton Rixson electromagnetic door holders deliver professional-grade reliability with heavy-duty thru-bolted armature construction and UL-cUL fire-rating up to 3 hours. The 2 year limited warranty and fail-safe operation design ensure dependable performance in demanding commercial fire safety applications. Engineered for critical life safety systems where reliable door control and code compliance are essential.

Product Specs

Condition:
New
Warranty:
2 Year Limited
UL Listing Type:
UL-cUL Fire-Rated Up to 3 Hours
Product Group:
Door Controls
Product Subgroup:
Electromagnetic Door Holder / Releases
Product Type:
Electromagnetic Door Closers
Subcategory:
Electromechanical Closers & Holders
Commercial/Residential:
Commercial
Electronic:
Yes
Application:
Commercial Doors
Wiring:
Concealed or Surface
Product Voltage:
24VAC/DC
Product Finish:
Aluminum
Door Hand Direction:
Non-Handed
Mounting Method:
Wall
Product Category:
Door Controls
Department:
Door Hardware

Norton Rixson RIX-993M 689 – Frequently Asked Questions

1) Will the Norton Rixson 993M door holder release the door automatically if the fire alarm trips or power drops?
Yes. The 993M is a fail-safe electromagnet: cut the 24VAC/DC power and the magnet lets go, so the door closes. That's how it ties into a smoke detector or alarm panel - the release is simply the loss of holding current, which is why it can sit on UL-cUL fire-rated openings up to 3 hours.
2) Does the 993M mount on the wall or on the floor?
Wall mount. The magnet assembly goes on the wall at the hold-open point and the armature plate thru-bolts to the door face. If your condition is a door that swings out over a corridor with no usable wall behind it, a wall-mounted holder is the wrong choice - you'd want a floor-mounted unit instead.
3) Is the 993M acceptable on a 3-hour fire rated opening in a hospital or school?
It's UL and cUL listed for fire-rated openings up to 3 hours, which covers the corridor and cross-corridor doors typical in healthcare, education, and multi-tenant residential where doors are held open for traffic and must close on alarm. It is a commercial-rated device, not a residential one.
4) Do I need to order a left-hand or right-hand version of the 993M?
No handing to specify. The 993M is non-handed, so one part number covers left and right swings. The armature rotates up and down and back and forth to square up against the magnet, which is how it absorbs minor misalignment on either hand.
5) What is the switch on the 993M for, and how big is the box?
It's a test switch, used to drop the magnet manually so you can verify the door releases and closes during commissioning or periodic fire door inspection, without pulling the alarm. The switch box measures 4-1/2 x 4-9/16 x 2-1/2 inches deep, so allow for that depth in the wall behind it. The same switch also gives you a point to integrate a key switch release.
6) Can the 993M be wired without running exposed conduit down the wall?
Yes, it takes concealed or surface wiring, so you can bring 24VAC/DC up inside a finished wall or run it on the surface where you can't open the wall up. Existing construction usually ends up surface; new work and retrofits with open wall get concealed.
7) Does an electromagnetic door holder replace the door closer?
No. The 993M holds the door open and releases it; the closer is what actually pulls it shut and controls the speed. You need both on the opening. The holder supplies no closing force of its own, which is exactly why fail-safe release works - the door falls to the closer the instant power drops.
8) What finishes does the Norton Rixson 993M come in so it matches the closers on my other doors?
Five: 689 aluminum, 690 dark bronze, 691 light bronze, 693 flat black, and 696 satin brass painted. Those are the standard painted door-control finish numbers, so a 689 holder lines up with 689 closers and a 690 holder with dark bronze closers across a building.
How fast can I get the Norton Rixson RIX-993M 689 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 Norton Rixson RIX-993M 689 come with a warranty?
Absolutely. The Norton Rixson RIX-993M 689 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 Norton Rixson RIX-993M 689?
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 Norton Rixson RIX-993M 689 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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