The Detex 104287-4 is the OEM fillerplate subassembly for the EXxW (Exit Only Wide Pushpad) configuration of the Detex Value Series exit device, in the 4-foot (48-inch) LD (Less Dogging) format. It is listed in the official Detex Value Series EB-EA-EX-EBxW-EXxW electrical instructions parts table (document 104947) and is compatible across the full EB/EA/EX/EBxW/EXxW Value Series family when the installed device is the 4-foot EXxW LD configuration.

The fillerplate is the primary structural body of the exit device - the component that mounts to the door face and provides the mechanical housing for the pushpad mechanism, mounting positions, and associated hardware. The 104287-4 is the 4-foot version; the 3-foot EXxW LD version uses a different part number.

Detex EXxW vs EBxW: Understanding the Difference

The "EX" and "EB" designations in the Detex Value Series separate exit-only function from exit alarm function. Getting these two right before ordering is critical - the fillerplate subassemblies are NOT interchangeable between them.

EXxW (this product's series) = Exit Only, Wide Pushpad. The "EX" designates exit-only function - the device controls egress mechanically but contains no alarm electronics, no siren, no battery compartment, no LED indicator, and no arming cylinder provisions. The "xW" designates the wide pushpad format. The 104287-4 EXxW fillerplate has no provisions for an alarm circuit board, making it the correct specification when the installation requires a wide pushpad exit device without an alarm system.

EBxW (different series) = Exit alarm Body, Wide Pushpad. The "EB" designates the exit alarm configuration, which includes provisions for the alarm electronics board, battery, siren, LED indicators, and mortise cylinder for arming and disarming. The EBxW fillerplate subassemblies in the 104358 series (104358-3 for 3-foot, 104358-7 for 4-foot) are for this alarm-equipped configuration.

Ordering a 104287-4 EXxW fillerplate for an EBxW alarm device leaves no provisions for the alarm components. Ordering an EBxW fillerplate for an EX exit-only device includes unnecessary alarm provisions that won't be used. Match the fillerplate subassembly to the specific device designation confirmed on the installed exit device.

Detex Fillerplate Subassembly: What LD Means and When It Applies

LD stands for Less Dogging. The 104287-4 fillerplate ships without any dogging hardware installed in the dogging position. For the EXxW configuration, this is the standard specification for most applications - exit-only wide pushpad devices are frequently installed on doors where dogging is not required or not permitted.

Dogging holds the pushpad depressed to allow free passage during high-traffic periods. On fire-rated exit alarm doors and controlled egress openings, dogging may be restricted by code or by the facility's security policy. The LD (Less Dogging) fillerplate closes the dogging position with a cover plate rather than installing a dogging mechanism - a clean, finished appearance that confirms no dogging capability is present.

If the installation requires dogging capability, a different fillerplate subassembly applies.

Detex Exit Device Parts: 104287-4 Compatibility Across the Value Series

The 104287-4 is listed as compatible across the EB/EA/EX/EBxW/EXxW Value Series in the electrical instructions documentation. This broad compatibility indicates that the fillerplate physical mounting dimensions are shared across the Value Series family - the distinction is in the internal provisions (alarm vs exit only), not the external mounting footprint. A qualified installer confirms the installed device designation before selecting the 104287-4 as the appropriate fillerplate.