STI G3A449LD-EN Multipurpose Push Button Flush Mount
Overview
The STI G3A449LD-EN is a 12VDC flush-mount multipurpose push button engineered for access control circuits where audible feedback and electrical switching are required in the same footprint. This unit delivers NC/NO/COM contact configurations suitable for door strike control, request-to-exit signaling, and general access system integration. The visible reset lever and rotating disc design simplify troubleshooting and manual overrides on installation and maintenance calls—critical for facilities where integrators need fast visual confirmation of button state during commissioning.
Compatibility
The G3A449LD-EN integrates into 12VDC access control systems and door strike circuits. Wires into standard access control panel push-button inputs via NC/NO/COM terminals. Fits flush-mount electrical boxes (1/2 in. NPT thread provision for conduit entry). Compatible with request-to-exit loops, magnetic lock release circuits, and buzzer/solenoid control logic in commercial door control applications. Verify your access control panel's push-button input voltage and contact configuration before ordering.
Installation Notes
Mount into standard electrical box with 1/2 in. NPT thread provision for conduit. Secure with #8 × 1.5 in. mounting screws (two required). Wire NC, NO, and COM terminals to access panel according to circuit diagram in datasheet—typically NC for fail-secure circuits, NO for momentary unlock. Verify 12VDC supply is regulated and protected by fused circuit on the access control panel. The button includes CR123A lithium battery backup for audible feedback; check battery condition during commissioning if sound is required. Reset lever is manually accessible for testing and clearing stuck contacts.
