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The SAFETY TECHNOLOGY INTL INC STI-4100EM-FR is a large break glass stopper designed for emergency and fire applications. This device protects break glass stations, emergency call points, and similar controls from accidental activation. When mounted over a break glass unit, it acts as a physical barrier that must be deliberately removed or broken before the protected control can be operated. Electricians, fire alarm technicians, and life safety contractors typically specify and install this product in commercial and industrial facilities where code-compliant protection of emergency devices is required.
The STI-4100EM-FR is suited for use in commercial buildings, industrial facilities, and institutional environments where break glass emergency controls must be guarded against unintentional operation. It is categorized under exit devices and push button controls, making it applicable wherever a large-format protective cover is needed over an emergency activation point. This stopper is sized for large break glass stations and is sold as a single unit.
Designed as an OEM-style replacement or new-installation cover for large break glass emergency and fire control stations in commercial and industrial life safety systems.
Installation is typically performed by licensed electricians or fire alarm technicians in accordance with applicable local fire and life safety codes. Before servicing or replacing the stopper, ensure the associated emergency system is properly isolated or placed in test mode per facility procedures. Follow the manufacturer instructions for proper mounting to ensure the stopper seats securely over the protected break glass station. Do not obstruct required egress signage or emergency device labeling during installation.
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