DORMA EM504 Electromagnetic Do...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$600.00
$334.94
Dormakaba DORMA EM504 Electromagnetic Door Holder, Semi-flush Wall Mount, Long Catch Plate DOR-EM504

DORMA EM504 Electromagnetic Door Holder, Semi-flush Wall Mount, Long Catch Plate

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Model: EM504-24120-689
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$600.00
$334.94
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DORMA EM Series

Electromagnetic Door Holders

The EM Series electromagnetic door holders with dual voltage capability and an adjustable catch plate provide versatility for varying applications. Add-on catch plate extensions further enhance its flexibility.

Door holders ANSI/BHMA certified.

  • Dual voltage capability
  • Adjustable catch plate
  • Silent operation
  • Several mounting methods
  • Superior reliability

Product details

Economical package for controlled release and closing of doors

The DORMA EM Series door holders are composed of a door mounted catch plate and a floor- or wall-mounted electromagnet. This series serves as an economical package for use in conjunction with DORMA door closers whenever controlled release and closing of doors is necessary for safety or convenience such as in hotels, hospitals, and nursing homes.

Superior reliability

The EM Series magnets offer superior reliability with built-in protection and low residual magnetism so they release easily even in applications meeting ADA requirements with minimal spring force door closers.

Several mounting methods for EM Series Electromagnetic Door Holders

Brackets are not required for recessed, flush, or surface mounting. The catch plate on the door features a ball-shaped pivot arm for adjustability to further ensure perfect alignment. Optional extension rods are available to accommodate greater distances between the door and wall.

Manufacturer Resources

Product Specs

Product Group:
Electronic Access Controls
Series:
EM Series
Application:
Wall Mount, Single Door
Product Subgroup:
Electromagnetic Door Holders
Product Type:
Wall Mount Electromagnetic Door Holders
Subcategory:
Electromagnetic Door Holders
Commercial/Residential:
Commercial
Electronic:
Yes
Product Voltage:
24VDC/24VAC or 120V
Door Hand Direction:
Non-Handed
Mounting Method:
Wall
Product Category:
Electronic Access Controls
Department:
Door Hardware

Dormakaba EM504-24120-689 – Frequently Asked Questions

1) Will the DORMA EM504 door holder work on 24V and on 120V, or do I have to pick one when I order?
The EM504 is dual voltage, listed at 24VDC/24VAC or 120V, so one part covers both a low-voltage fire alarm circuit and a line-voltage tie-in. You set it for the supply you have rather than ordering a separate voltage version. The only choice you make on the order is finish: 689 aluminum, 695 dark bronze, or 696 satin brass.
2) Does the EM504 hold the door open by itself, or do I still need a door closer?
A closer is still required. The EM Series magnet only holds the door in the open position and releases it; the controlled closing comes from a DORMA door closer working with it. Plan on a magnet, a catch plate on the door, and a closer on every opening you are doing.
3) Do I need to order left hand and right hand versions of the EM504 for different doors?
No handing to specify. The EM504 is non-handed, so the same part goes on a left hand or right hand opening. That makes it straightforward to standardize one item across a building instead of stocking two.
4) My door opens back further from the wall than the catch plate reaches. What do I order?
Two things solve that gap. The catch plate is adjustable and uses a ball-shaped pivot arm, so it takes up misalignment and a modest offset on its own. For a genuinely greater distance between the door face and the wall, optional extension rods and add-on catch plate extensions are available for the EM Series. The EM504 already carries the long catch plate, which is the first step up from a standard plate.
5) Will a magnetic door holder release cleanly on a door with an ADA-compliant low force closer?
That is the case the EM Series is built for. The magnets have low residual magnetism, so they let go without the door hanging up, including on applications meeting ADA requirements with minimal spring force door closers. That matters because a magnet that keeps a residual grip will defeat a light closer and leave a fire door standing open.
6) Can I use one EM504 to hold a pair of doors open?
No. The EM504 is a single door application, so a pair of doors needs one magnet and one catch plate per leaf. Order two units and two wall locations, and run both off the same release circuit so the pair drops together.
7) Should I use a wall mount magnetic door holder or a floor mount one?
The EM Series comes both ways, and the EM504 is the wall-mounted magnet. Wall mount is the usual pick where the door swings back near a wall and you do not want a unit sticking up off the floor to be kicked, mopped around, or tripped over. Floor mount is the answer when the door parks away from any wall surface. The EM504 is a semi-flush wall unit with a long catch plate, so it suits a door that stands off the wall further than a plain flush magnet reaches.
8) Do I need a mounting bracket kit with the EM504?
No bracket needed. Brackets are not required for recessed, flush, or surface mounting on the EM Series, so the semi-flush wall unit goes to the wall directly. Budget for the wall magnet, the door-mounted catch plate, and your wiring, plus extension rods only if the door stands well off the wall.
9) Is the DORMA EM504 suitable for a hospital or hotel corridor door on a commercial building?
Yes, it is a commercial-rated unit, and corridor doors in hotels, hospitals, and nursing homes are the stated application for the EM Series. It runs silent, which is the practical reason it gets specified in patient and guest areas over a mechanical hold-open that clacks. The door holders are ANSI/BHMA certified.
10) I need the door holders to match dark bronze hardware already in the building. What finishes does the EM504 come in?
Three finishes: 689 aluminum, 695 dark bronze, and 696 satin brass. Those are the standard BHMA finish codes, so 695 lines up with dark bronze closers and exit hardware elsewhere in the building and 689 with the common painted aluminum look.
How fast can I get the Dormakaba EM504-24120-689 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 Dormakaba EM504-24120-689 come with a warranty?
Absolutely. The Dormakaba EM504-24120-689 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 Dormakaba EM504-24120-689?
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 Dormakaba EM504-24120-689 from ZenSupply?
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