STI STI-13230NB Universal Stopper with Horn & Relay
Overview
The STI-13230NB is a surface-mount protective stopper housing that integrates relay and horn functionality into a single compact unit. It protects manual alarm stations, numeric keypads, intercom stations, emergency buttons, and electrical switches from vandalism, accidental damage, dust, and environmental contamination. Built from UV-stabilized polycarbonate with a solid hinge and designed for both indoor and outdoor use, this device operates on 24VDC and combines protective housing with field-switchable relay output — reducing component count in access control and intercom installations.
Compatibility
Designed for integration with STI intercom systems and universal door control architectures. Operates on 24VDC, the standard supply voltage in professional access control and intercom deployments. Surface-mount installation works with standard wall surfaces without embedded conduit. The housing accommodates most fire alarm stations and keypads; verify your device footprint against the unit's internal dimensions before specifying.
Installation Notes
Surface-mount configuration uses standard fastening hardware (included). The waterproof-rated model features ¾-inch rigid conduit threading on both upper and lower housing sections — route wiring through conduit for environmentally sealed installations. Relay output accepts 12–24VDC supply, permitting flexible voltage selection in mixed-voltage installations. Low-profile design meets ADA compliance for accessible emergency station placement. Seals and gaskets are included; do not omit them in outdoor or high-moisture deployments. No label option ships without pre-printed signage — apply facility-specific labeling as required by local fire and safety codes.
What's in the Box
- 1x STI-13230NB universal stopper housing (surface-mount)
- Integrated relay with 12–24VDC output
- Mounting fasteners (quantity per mounting surface type)
- Gaskets and seals
