The Detex 103634 is the OEM top strike for the Detex ECL-230X Series exit control lock, documented in the Detex ECL-230X Series Parts Catalog. It is the frame-side keeper that receives the top bolt on any ECL-230X variant that includes a top locking bolt - the ECL-230X-TB (2-point, top and bottom bolts) and the ECL-230X-TDB (3-point, top bolt, deadbolt, and bottom bolt). When the ECL-230X is locked, the top bolt projects 3/4" from the device body into the 103634 top strike, with 5/8" of bolt engagement inside the strike keeper. That engagement is what anchors the top of the door to the frame during the locked state.

The top strike position is not interchangeable with the bottom or deadbolt strikes in the ECL-230X system. The 103634 is the top-specific replacement. If the strike is damaged, pulled out of alignment, or corroded beyond serviceable condition, this part restores the top latch engagement point without replacing the complete exit control lock.

What the Detex ECL-230X Is and Why the Top Strike Matters

The Detex ECL-230X is Detex's Exit Control Lock series - a battery-alarmed multipoint deadbolt exit device for secondary exits. Secondary exits, in building code terms, are doors that serve egress functions but are not primary means of egress and can be more restrictively controlled. Back doors, loading dock exits, stockroom exits, and secondary stairwell doors are the typical ECL-230X applications. The device provides controlled egress - free exit when the lockbar is operated - combined with a 100dB alarm and high-security multipoint bolt engagement that prevents unauthorized entry from outside.

The ECL-230X-TDB (the 3-point version) has been independently tested to withstand 16,000 pounds of pull force, which is the metric for door-forced-entry resistance. That pull force rating depends on all three bolt engagement points being correctly installed and structurally sound. The top strike (103634) carries approximately one-third of that total load at the frame header. A loose, misaligned, or damaged top strike breaks the multipoint engagement and drops the effective holding force below the rated value.

Detex Top Strike: Surface and Flush Mount Options

The ECL-230X Series uses a surface/flush reversible strike design. The 103634 top strike can be installed either surface mounted on the face of the door frame - sitting proud of the frame face with the keeper opening exposed - or flush mounted recessed into the frame face so the strike sits at the frame surface level. The choice depends on the frame material, the reveal depth, and whether the installation is in a metal, wood, or aluminum frame. Both mounting methods are acceptable for the ECL-230X installation. Flush mounting is typically preferred for aesthetic and snag-clearance reasons; surface mounting is faster to install when the frame doesn't have adequate depth for recessing.

Detex ECL-230X Alarm Exit Device: Parts Context for the Top Strike

The ECL-230X operates on a 9V battery that powers the 100dB siren alarm and the alarm circuit. Locking the deadbolt with the control key always arms the alarm. Unlocking the deadbolt always disarms it. When someone attempts to push the bar to exit while the device is armed, the alarm activates immediately. The alarm cannot be reset from outside the door - only the control key on the inside resets it. The photo-luminescent sign on the device face absorbs ambient light and glows in the dark, which is specifically required for egress visibility when power fails.

The top strike 103634 is a passive mechanical component that does not interact with the alarm circuit. It serves only the mechanical latching function. Replacing it doesn't require any alarm reconfiguration or battery removal.

SecurityParts stocks OEM Detex ECL-230X Series parts.