SDC EHR4A EH Series 4" Extension Rod for Electromagnetic Door Holders, Chrome Powder Coat

Improve installation flexibility and long-term reliability for electromagnetic door holders with the Security Door Controls EHR4A EH Series 4" Extension Rod. Designed specifically for EH Series magnetic door holders, this 4-inch extension rod gives installers the extra reach needed to align armature catch plates precisely—reducing field adjustments and on-site rework. The aluminum core with a chrome powder coat finish provides corrosion resistance and a clean, professional look suited to commercial, healthcare, education and government security environments.

Ideal for access control and fire life-safety integrations, the EHR4A supports reliable holding performance and clean release when commanded by monitoring systems or emergency shutdowns. At approximately 1 lb and engineered to mate with SDC’s self-aligning catch plates, it streamlines retrofits and new installations alike. With a 5-year limited warranty, this extension rod helps lower maintenance costs and supports long-term security system uptime. Order the Security Door Controls EH Series extension rod to simplify installations and ensure consistent electromagnetic door holder operation in your security and surveillance projects.

• Extends armature reach for correct alignment with EH Series electromagnetic door holders, reducing installation time and callbacks
• Durable chrome powder coat finish and aluminum construction resist corrosion and maintain professional appearance in high-traffic facilities
• 4" length provides reliable additional reach where mounting offsets or transom gaps exist
• Enables compliance with fire life-safety and access control systems by ensuring doors are held securely until commanded to release
• Backed by a 5-year limited warranty for long-term performance and lower lifecycle costs