Safety Technology Int'l Inc SS2421ZA-EN Blue Stopper Station

Product Description

The SAFETY TECHNOLOGY INT'L INC SS2421ZA-EN is a blue stopper station designed for emergency push-button applications in commercial and industrial facilities. It pairs with an STI-6517 protective cover to guard the actuator against accidental activation while remaining immediately accessible when needed. The unit is sold as an individual assembly and is typically installed by electricians or security system technicians as part of an access control, emergency stop, or egress notification circuit. The rugged housing and high-visibility blue color make it easy to locate in corridor, lobby, and stairwell applications.

This stopper station is suited for indoor commercial installations where a dedicated emergency or call-point push button is required. The included STI-6517 cover adds a protective layer that reduces nuisance activations in high-traffic areas such as schools, hospitals, office buildings, and light industrial facilities. It falls within the exit devices and push buttons product category, making it a standard component in low-voltage emergency signaling and access control panel layouts.

Key Features

• High-visibility blue housing for quick identification in emergency scenarios
• Includes STI-6517 protective cover to prevent accidental actuator depression
• Designed for push-button emergency stop or call-point circuit integration
• Sold as a single unit assembly for straightforward replacement or new installation
• Fits within exit device and push-button wiring systems in commercial environments

Compatibility

Designed as an OEM-style replacement or new-installation push-button stopper station for commercial low-voltage emergency stop and egress notification systems that accept a standard push-button call point with a protective cover.

Installation Notes

Installation should be performed by a licensed electrician in accordance with applicable NEC requirements for low-voltage signaling and emergency systems. De-energize the circuit and verify zero voltage before making any wiring connections to the station. Mount the unit at a code-compliant height for the intended application, and confirm the STI-6517 cover is fully seated and latched before returning the circuit to service. Consult the manufacturer data sheet and local authority having jurisdiction for any location-specific requirements.