The Detex 100860-51 is the OEM fillerplate subassembly for the Detex Advantex EA exit alarm - specifically the 3-foot, weatherized configuration with battery and Request to Exit (RX). It is documented in the Detex Advantex EA-EX-EBxW Electrical Instructions (doc 104873) as Item 1KIT in the device parts breakdown. The fillerplate is the primary structural body of the Advantex EA device: it mounts to the door face, houses the alarm electronics mounting positions, provides the pushpad attachment interface, and carries the hardware for the mortise cylinder that arms and disarms the alarm. The armored cable running to the alarm circuit and the EA circuit board (100744-2, sold separately) both connect through and to this subassembly.

This is the Advantex heavy-duty version - not interchangeable with Value Series EA or EBxW fillerplates from the V40/V50 product family. Confirm the installed device is the Advantex EA before ordering.

What the Detex Advantex EA Is and Why the Fillerplate Matters

The Advantex EA is Detex's super-heavy-duty exit alarm for institutional applications where the Value Series isn't specified. It runs a battery-powered 100dB siren alarm activated when the pushpad is depressed while the device is armed. The mortise cylinder on the fillerplate controls the armed/disarmed state: CCW to arm, CW to disarm. Green LED indicates disarmed, red LED indicates armed. The device ships with Auto Rearm set to OFF and Status Indicator set to OFF - both are field-configurable by the installer.

The fillerplate is where all of this comes together physically. It's the first component installed on the door. Everything else - the pushpad, endcap brackets, circuit board, battery compartment, and cylinder - builds onto or connects into the fillerplate once it's secured to the door face. If the fillerplate is damaged from impact, corrosion, or structural fatigue, the device can't be properly reassembled or maintain correct alignment between the pushpad and the centercase. The 100860-51 replaces the fillerplate body without requiring a complete device replacement.

Detex Fillerplate: EA vs EB-W and EX-W

The Advantex EA-EX-EBxW catalog covers three device types that share the same installation architecture but differ in function:

The EA (this product's device) is the full exit alarm with battery backup and RX monitoring. The EA circuit board (100744-2) handles all alarm logic - timing, LED status, siren activation, arming/disarming.

The EB-W is the wide pushpad exit alarm body. It uses a different circuit board (106170 EB-W circuit board) and the fillerplate for EB-W is separate from the EA fillerplate. The EB-W fillerplates carry part numbers 100860-145 (3ft) and 100860-151 (4ft).

The EX-W is the exit-only wide pushpad configuration - no alarm, hardware exit function only.

The 100860-51 fillerplate is specific to the EA device. It has the correct mounting provisions for the EA circuit board and the battery compartment. Do not substitute EB-W or EX-W fillerplates into an EA installation.

Detex Alarm Exit Device Parts: Armored Cable and Weatherized Options

The Advantex EA device uses an armored cable to connect the pushpad switch circuit to the alarm electronics. This cable is a field-specified separate item from the fillerplate. For weatherized installations (this product's application), the correct cable is the Weatherized Armored Cable Kit FC3W for 3-foot devices or FC10W for 10-foot cable runs. For non-weatherized applications, the standard armored cable kits FC3 and FC10 apply.

The weatherized designation on this device and its fillerplate means the assembly is rated for wet location and outdoor use. The hardware, seals, and finish are selected for corrosion resistance. Ordering non-weatherized components for a weatherized installation is a durability and compliance problem - always match the weatherization level of the replacement part to the installed device.

SecurityParts stocks OEM Detex Advantex EA parts.