SDC EH30-24120-A Electromagnet...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$191.00
$131.37
Security Door Controls Electromagnetic Door Holder, Surface Mount, 24VAC/DC or 120VAC, Chrome Powder Coat

SDC EH30-24120-A Electromagnetic Door Holder Surface Mount 24VAC/DC 120VAC Chrome Powder Coat

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Model: EH30-24120-A
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$191.00
$131.37
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SDC EH30 Electromagnetic Door Holder Surface Mount 24VAC/DC 120VAC Chrome Powder Coat

Professional Fire Life Safety Door Holding Solution

The SDC EH30 Electromagnetic Door Holder delivers reliable door holding and release functionality for fire life safety and security applications. This surface-mounted model features field-selectable holding force from 25 to 40 lbs depending on voltage, dual 24VAC/DC or 120VAC compatibility, and low power consumption of 15mA to 40mA. Constructed with zinc alloy and chrome powder coat finish, the EH30 projects 4-5/8"; and includes an innovative ball pivot assembly for full plate contact and precise alignment.

Professional Features & Benefits

  • Field-Selectable Holding Force: 25, 30, 35, or 40 lbs holding capacity (voltage-dependent) provides flexibility for various door weights and applications.
  • Dual Voltage Compatibility: 24VAC/DC or 120VAC operation accommodates different electrical system requirements with single unit design.
  • Low Power Consumption: 15mA to 40mA current draw ensures energy-efficient operation for continuous door holding applications.
  • Precision Alignment System: Ball pivot assembly with self-aligning catch plate and adjustable magnet centerline ensures full plate contact for maximum holding force.
  • Heavy-Duty Construction: Zinc alloy construction with chrome powder coat finish provides durability and corrosion resistance for long-term reliability.
  • Fire Life Safety Integration: Automatic release upon power loss or fire life safety command signal ensures code-compliant emergency egress.
  • Installation Flexibility: Surface mount design with slotted mounting holes and optional adjustable rod accommodates up to 4"; misalignment compensation.
  • Simplified Wiring: Screw terminal block input connections streamline electrical installation and maintenance access.

Technical Specifications

  • Department: Door Hardware
  • PDF:SDC Full Catalog: https://zensupply.com/content/pdf/lcn/CondensedHardwareBrochure

Professional Applications

  • Commercial Building Fire Life Safety Systems
  • Healthcare Facility Emergency Egress
  • Educational Institution Safety Systems
  • Industrial Facility Fire Protection
  • Government and Municipal Buildings
  • Multi-Tenant Residential Fire Safety
  • Retail Establishment Emergency Systems

Why Choose SDC Quality?

SDC EH30 Electromagnetic Door Holders deliver professional-grade reliability with zinc alloy construction and chrome powder coat finish engineered for demanding fire life safety applications. The innovative ball pivot assembly and field-selectable holding force options ensure optimal performance across diverse installation requirements. Designed for critical applications where dependable door holding and emergency release functionality is essential.

Manufacturer Resources

SDC Full Catalog

Product Specs

Department:
Door Hardware
Commercial/Residential:
Commercial
Product Category:
Electromagnetic Locks
Product Group:
Electromagnetic Locks
Product Subgroup:
Electromagnetic Door Holder / Releases
Product Type:
Electromagnetic Door Locks
Subcategory:
Electromagnetic Door Holder / Releases

SDC EH30-24120-A – Frequently Asked Questions

1) Will the SDC EH30 door holder release automatically if the fire alarm trips or the power drops?
Yes. The EH30 electromagnetic door holder releases the door on loss of power or on a fire life safety command signal, so the door closes for egress. That is the whole point of holding a door open on a magnet instead of a mechanical stop: the alarm panel or the power failure does the releasing, not a person.
2) How far off the wall does a surface mount magnetic door holder like the SDC EH30 stand?
The EH30 projects 4-5/8 inches from the mounting surface. Measure from your wall to the face of the open door leaf before you commit: if the gap is larger than that, you need the optional adjustable rod, which takes up to 4 inches of additional misalignment.
3) What if the door doesn't line up square with the magnet?
Some misalignment is expected and the EH30 is built for it. A ball pivot assembly on the catch plate lets the plate self-align to the magnet face for full contact, the magnet centerline is adjustable, and the mounting holes are slotted so you can shift the unit during install. Beyond that, the optional adjustable rod handles up to 4 inches. Full plate contact is what gets you the rated holding force, so an armature sitting on one edge is the usual reason a holder drops a door.
4) How is the EH30 door holder wired in?
Input connections land on a screw terminal block, so it is a straightforward two-conductor pull from your alarm panel's holder circuit or a 120VAC feed, with no plug or pigtail to splice. Select the holding force at the unit when you terminate, since force follows the voltage you land on it.
5) Is a magnetic door holder the same thing as a magnetic lock?
No, and ordering the wrong one is a common mistake. A magnetic lock holds a door shut in the closed position and is part of an access control system. The EH30 is a door holder/release: it holds a door OPEN against its closer and lets go on alarm or power loss so the door can swing shut. If you want the door held open during normal use and self-closing on alarm, the holder is the part. If you want the door secured closed, you want a maglock.
6) Will the SDC EH30 hold up in a corridor that gets hit all day, and what finish does it come in?
The body is zinc alloy with a chrome powder coat, ordered in 626 dull chrome, a satin chrome look that matches most commercial lever and closer hardware already hanging in a corridor. The powder coat is what gives it corrosion resistance in a stairwell or a service corridor. It is a commercial-rated device, not a residential accessory.
7) Can I use magnetic door holders on fire doors that are supposed to stay closed?
That is exactly the application they exist for. A fire or smoke door can be legitimately held open only if it releases on the alarm, and the EH30 does that on a fire life safety command signal or on loss of power. Common installs are hospital corridor and stair doors, school and dormitory cross-corridor doors, and multi-tenant residential and government buildings. Wire it to the alarm system, not to a switched convenience circuit.
How fast can I get the SDC EH30-24120-A 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 SDC EH30-24120-A come with a warranty?
Absolutely. The SDC EH30-24120-A 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 SDC EH30-24120-A?
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 SDC EH30-24120-A 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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