SDC EH421224A EH Series Electromagnetic Door Holder, Floor Mount Double, 12/24V AC/DC, Chrome Powder Coat

Keep fire-rated doors open predictably and release them instantly when safety systems call for closure. The Security Door Controls EH421224A electromagnetic door holder (EH Series, floor-mount double) provides dependable door retention for life-safety and access control applications, improving traffic flow during normal operation while ensuring code-compliant closure during emergencies. Designed for easy integration, the unit accepts 12V or 24V AC/DC power and delivers a 30 lb holding force, with field-selectable higher holding available to match site requirements. Low current draw minimizes power supply sizing and operating costs, while the self-aligning ball-pivot catch plate and slotted mounting holes reduce installation time and rework. UL listing and robust chrome powder-coat finish ensure suitability for demanding commercial environments. Ideal for security, surveillance and building monitoring systems where reliable door control and coordinated fire/life-safety response are required. Specify the SDC EH421224A for dependable door retention in hospitals, schools, offices and multi‑tenant buildings — contact us to add this door holder to your next project.

• Keeps fire-rated and high-traffic doors reliably open until a fire/life-safety signal or power loss triggers release
• Low-power 12/24V AC/DC operation reduces energy use and allows flexible system integration
• 30 lb holding force with field-selectable high-hold option for fewer SKUs and simpler inventory
• Self-aligning ball-pivot catch plate and slotted mounts simplify installation and ensure full plate contact
• Floor-mount double configuration built for durable commercial use in hospitals, schools and office buildings