HES 7440-628 Ultraline Electric Strike for Radius Jamb
The HES 7440-628 is a purpose-built electric strike engineered specifically for radius jamb door frame installations in commercial and institutional access control environments. Unlike standard strikes designed for conventional square jambs, the 7440-628 accommodates the curved geometry of radius jamb configurations without compromising locking reliability or control integration. This focus on jamb-specific geometry eliminates the installation headaches and fitment gaps that occur when forcing a standard strike into a non-standard frame.
Key Features
- Ultraline Profile Design: The compact Ultraline form factor fits into space-constrained radius jamb installations where standard-depth strikes won't work. This matters in renovation projects or tight architectural spaces where frame depth is limited — you get full electromagnetic locking functionality without frame modification.
- Clear Anodized Aluminum Finish: Provides corrosion resistance and maintains professional aesthetics across interior commercial and institutional deployments. Anodized aluminum won't degrade in humid or salt-air environments as quickly as painted steel, extending service life in healthcare and educational facilities.
- Standard Electric Strike Control Compatibility: Integrates with conventional access control wiring and power supply architectures. If your site already runs a distributed door control system, the 7440-628 plugs into your existing control logic without protocol translation or specialized interfaces.
- Radius Jamb Geometry Accommodation: Engineered strike profile aligns with the curved transition between door frame and jamb structure. A standard strike mounted on a radius jamb creates mechanical stress points and potential locking gaps — the 7440-628 eliminates that problem by matching the frame geometry.
- Interior Commercial and Institutional Suitability: Designed for dry indoor environments in office buildings, educational campuses, healthcare facilities, and government installations. Not rated for exterior exposure or extreme environmental stress — keep this strike indoors.
- Access Control System Integration: Wires into your door control ecosystem (credential readers, request-to-exit devices, access management software). The strike acts as the electromagnetic locking element in a broader access control architecture — it is not a standalone device.
Integration and Deployment Context
The 7440-628 functions as the locking mechanism in an access control installation. Power supply, control logic, and credential management are provided by separate access control components — the strike itself draws power from a control module or dedicated strike power supply and responds to lock/unlock commands from your access control system. Installation requires routing control wiring from your access control panel to the strike location and securing the strike housing to the radius jamb frame using appropriate fasteners (hardware and fastener specifications available in the manufacturer datasheet).
Radius jamb compatibility means you can deploy this strike in door frames where the jamb edge follows a gentle curve rather than a sharp 90-degree corner. This is common in mid-century modern institutional architecture, curved glass entrances, and renovation projects where curved frames are part of the design. A standard square-jamb strike on a radius frame creates installation stress and potential alignment issues — the 7440-628 eliminates those problems by design.
The clear anodized finish is suitable for interior spaces but should not be exposed to direct outdoor weather, salt spray, or harsh chemical environments. In standard commercial interior conditions, the finish provides long-term durability and professional appearance.
Frequently Asked Questions
Q: Will the HES 7440-628 work with my existing access control panel?
A: Yes, the 7440-628 integrates with standard electric strike control architectures. Your existing access control panel should have a strike control output and associated power supply — the 7440-628 connects to those outputs using conventional wiring. Verify with the manufacturer that your specific panel model supports strike control output (most modern systems do).
Q: Can I retrofit the 7440-628 into a door frame that currently has a different strike installed?
A: Possibly, but only if the frame is a radius jamb configuration. The 7440-628 is designed for radius jambs — if your current frame is a standard square jamb, this strike is not the right choice. Measure the jamb edge geometry before ordering. If it's curved or rounded, the 7440-628 is a good fit. If it's a 90-degree corner, order a standard square-jamb strike instead.
Q: What power supply does the 7440-628 require?
A: The strike requires power from an access control strike power supply or from the strike control output of your access control panel. Exact voltage and current specifications are detailed in the manufacturer datasheet. Do not attempt to power the strike directly from building mains — use a dedicated strike power supply module.
Q: Is the clear anodized finish suitable for outdoor installation?
A: No. The 7440-628 is designed for interior commercial and institutional environments. Outdoor exposure, direct rain, or salt spray will degrade the anodized finish and potentially damage internal components. Deploy this strike indoors only.
Q: Does the 7440-628 work with magnetic locks or only electric strikes?
A: The 7440-628 is an electric strike — it is not a magnetic lock. These are different locking technologies. Electric strikes use an electromagnetic mechanism that retracts a mechanical latch or bolt when powered. Magnetic locks use pure electromagnetic adhesion. The 7440-628 is a strike, not a mag lock.
Jerry TildsenPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
The HES 7440-628 solves a specific but real installation problem: standard electric strikes don't fit radius jamb door frames without modification or shimming, which introduces misalignment and control reliability issues. The 7440-628 eliminates that problem by engineering the strike body to match the curved jamb geometry. If you are retrofitting access control into institutional or commercial facilities with curved-frame doors — especially renovation projects where the frame geometry is fixed — the 7440-628 is the right choice because it prevents the alignment and durability problems that plague forced installations.
Technical Highlights:
- Ultraline Profile Geometry: Compact depth optimized for radius jamb installations — eliminates the frame modification that would be required with a standard square-jamb strike. This matters in tight architectural spaces where frame depth is limited and you cannot modify the surrounding structure.
- Clear Anodized Aluminum Housing: Provides corrosion resistance in interior commercial environments (hospitals, schools, offices) and maintains professional appearance. Anodized finishes resist humidity and cleaning products better than painted steel, extending service intervals in high-traffic institutional settings.
- Standard Control Architecture Integration: Connects to conventional access control power supplies and control modules — no specialized interfaces or protocol translation required. This reduces commissioning time and keeps your system architecture standard.
Deployment Considerations:
- Verify your door frame is actually a radius jamb before ordering — measure the jamb edge curvature. A standard square-jamb strike is the wrong choice for this application, and the 7440-628 is the wrong choice if your jamb is a 90-degree corner. Frame geometry determines which strike you need.
- This is an interior-only device — no outdoor or salt-air exposure. The anodized finish is not rated for weather, and the internal components are not sealed for external conditions. Confirm all installation locations are indoors before proceeding.
- Power supply and control logic are external to the strike — you must provision a dedicated strike power supply or ensure your access control panel has a strike control output with sufficient power. The strike itself is the locking mechanism, not the control system.
Deploy the 7440-628 when you are installing or upgrading access control in institutional or commercial buildings with curved-frame doors and you want to avoid the installation labor and potential durability issues of retrofitting a standard strike into a non-standard frame. This strike pays for itself in reduced installation complications and frame-fitment problems on just a few doors.
