Safety Technology Intl SS2421EM-EN Blue Stopper Station

Product Description

The Safety Technology International SS2421EM-EN is a blue stopper station designed for use with emergency exit and push-button control applications. This unit pairs a blue stopper station with an STI-6517 protective shield, providing a tamper-resistant and damage-resistant assembly suited for high-traffic or vandalism-prone environments. Licensed electricians and life-safety technicians install this type of device as part of egress control, access control, or emergency signaling systems. The integrated shield helps protect the actuator from accidental activation and environmental damage, reducing nuisance trips in demanding commercial and industrial settings.

This stopper station assembly is appropriate for commercial and light industrial facilities where exit devices and push-button controls require additional physical protection. Typical installations include warehouses, manufacturing floors, schools, and public buildings where door-release or emergency-stop controls are subject to heavy use or deliberate tampering. The blue color coding provides clear visual identification of the control point for building occupants and service personnel.

Key Features

• Blue stopper station paired with STI-6517 protective shield for a complete, ready-to-install assembly
• Shield reduces risk of accidental activation and protects the actuator in high-traffic areas
• Designed for exit device and push-button control applications in commercial and industrial settings
• Sold as a single unit (each) for straightforward procurement and inventory tracking

Compatibility

Designed as an OEM-style replacement or new-installation component for exit device and push-button control systems requiring a protected blue stopper station with an STI-6517 shield assembly.

Installation Notes

Installation should be performed by a licensed electrician familiar with low-voltage control wiring and applicable local codes, including NEC requirements for life-safety and egress control devices. Power down and de-energize the associated control circuit before beginning any wiring work. Verify that the mounting surface and conduit connections are compatible with the stopper station housing before securing the assembly. Consult the manufacturer data sheet for wiring termination details and enclosure mounting dimensions prior to installation.