DORMA EM502 Electromagnetic Do...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,383.00
$1,123.92
Dormakaba DORMA EM502 Electromagnetic Door Holder, Floor Mounted, Double Door DOR-EM502

DORMA EM502 Electromagnetic Door Holder, Floor Mounted, Double Door

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Model: EM502-24120-689
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,383.00
$1,123.92
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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:
Floor Mount, Double Door
Product Subgroup:
Electromagnetic Door Holders
Product Type:
Floor 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:
Floor
Product Category:
Electronic Access Controls
Department:
Door Hardware

Dormakaba EM502-24120-689 – Frequently Asked Questions

1) Will the DORMA EM502 door holder work on a pair of doors, or do I need one unit per leaf?
The EM502 is the double door version of the EM Series floor mount holder, so one unit covers a pair of openings rather than a single leaf. Each door still gets its own catch plate, and the floor-mounted electromagnet handles both. If you're holding a single leaf open, you want the single door floor mount configuration instead.
2) What voltage does the DORMA EM502 electromagnetic door holder run on?
Dual voltage: 24VDC/24VAC or 120V. That means the same unit drops into a low voltage run off a fire alarm panel or a line voltage circuit, so you don't have to decide the power source before you order. Handy on retrofits where you inherit whatever wiring is already in the floor.
3) My doors sit further off the wall than the holder reaches. Can the EM502 still catch them?
Yes, within reason. Optional extension rods are available for greater distances between the door and the wall, and add-on catch plate extensions cover the same problem from the door side. The catch plate itself uses a ball-shaped pivot arm so you can dial in alignment once it's up.
4) Will an electromagnetic door holder release cleanly on an ADA opening with a light closer?
That's the failure mode with cheap holders, and the EM Series is built against it. The magnets use low residual magnetism plus built-in protection so they let go easily even where minimal spring force door closers are used to meet ADA opening force requirements. A holder that keeps a little grab after power drops will stall a light closer and leave the door standing open.
5) Do I have to order the EM502 door holder handed for left or right swing doors?
No handing to specify. The EM502 is non-handed, so the same part works on either swing. One less line item to get wrong when you're specifying a whole floor of openings.
6) Do I need mounting brackets to install a DORMA EM Series floor mount door holder?
Brackets aren't required for recessed, flush, or surface mounting. The EM Series magnet mounts directly in any of those three methods, which is what lets the same part number go into a new concrete pour or onto an existing finished floor.
7) Should I use a floor mounted door holder or a wall mounted one?
It comes down to what's behind the door when it's held open. Wall mount works when the door swings back flat to a wall within the magnet's reach. Floor mount, which is what the EM502 is, is the answer when the door parks away from any wall, in an opening, or against glass. The EM Series is offered both ways, so the electrical and the catch plate are the same decision either way.
8) Is the DORMA EM502 door holder rated for commercial use, and is it certified?
Commercial duty, and the EM Series door holders are ANSI/BHMA certified. Typical placements are hotels, hospitals, and nursing homes, where doors need to stand open for traffic and close on alarm.
9) Does the EM502 hold the door closed, or just hold it open?
Hold open only. An electromagnetic door holder catches the door in the open position and releases it, typically on a fire alarm signal or power loss, so the closer can shut it. The EM Series is meant to be paired with a door closer, which is what actually does the closing. It provides no latching or security function.
10) What finishes does the DORMA EM502 floor mount door holder come in?
Three: 689 aluminum painted, 695 dark bronze, and 696 satin brass. For a building being standardized, 689 is the usual match to painted aluminum closers and 695 to dark bronze storefront.
11) Will an electromagnetic door holder buzz or hum in a quiet corridor?
Silent operation is a stated feature of the EM Series, which matters in patient rooms, guest corridors, and nursing homes where a 120V magnet humming in the floor gets reported as a defect.
How fast can I get the Dormakaba EM502-24120-689 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 EM502-24120-689 come with a warranty?
Absolutely. The Dormakaba EM502-24120-689 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 EM502-24120-689?
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 EM502-24120-689 from ZenSupply?
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