STI STI-14210NB Universal Stopper Low Profile Surface Mount
Overview
The STI-14210NB is a low-profile, surface-mounted protective stopper designed to guard intercoms, emergency buttons, keypads, and fire alarm stations from vandalism, accidental damage, and environmental contamination. Without integrated horn, this model relies on external audio signaling or visual-only operation—suited for installations where audio is managed separately or where the protected device already includes its own sound capability. Operates on 24VDC, standard for integrated access control and building automation systems. The thick polycarbonate cap is UV-stabilized to resist yellowing and maintains clarity in indoor and outdoor service environments.
Compatibility
The STI-14210NB works with STI intercom stations, access control keypads, emergency call buttons, fire alarm pull stations, and similar mounted devices typical of commercial building entry and emergency systems. Surface mount design accommodates installation on any flat mounting surface without requiring cavity preparation, making it a retrofit option for existing installations. Sold as a standalone protective enclosure—verify that your target device's mounting footprint and electrical connections align with the stopper's internal cavity dimensions before ordering.
Installation Notes
Low-profile design meets ADA accessibility guidelines. The polycarbonate hinges are one-piece construction for durability; the cap can be mounted with the integral hinge positioned left or right depending on access direction. The unit features a latch tab (not for fire alarm service—fire code typically requires unobstructed pull stations). Internal sealed or open waterproof mounting plates are available for different installation scenarios. The waterproof enclosure top and bottom are threaded for ¾-inch rigid conduit, supporting both dry and wet-location deployments. Gaskets are included to ensure environmental sealing.
What's in the Box
- 1x STI-14210NB protective stopper enclosure with polycarbonate cap
- Gaskets for environmental sealing
