STI SS2421LD-EN Stopper Station Push Button with Stopper Station Shield, "Lockdown" Label, Turn-to-Reset Button, Blue

Put reliable lockdown and emergency shutdown control where you need it most. The Safety Technology International SS2421LD-EN Stopper Station push button combines a turn-to-reset actuator with a Universal Stopper protective cover to deliver a tamper‑resistant, intentional reset solution for schools, healthcare, data centers and commercial facilities. The curved shell and raised LOCKDOWN legend reduce false activations while the surface-mount spacer allows neat installation around exposed conduit. Interchangeable gold‑plated N.O./N.C. contact blocks offer flexible wiring to integrate with existing security, HVAC shutdown, and monitoring systems. Designed for indoor/outdoor use and compatible with common control voltages (120V/230V AC and 30V DC), the SS2421LD-EN supports demanding environments and system architectures. ADA-compliant and UL/cUL listed, this Stopper Station is built to meet code and simplify audits. Specify the STI SS2421LD-EN for dependable emergency control that pairs with surveillance and access control systems—order now to strengthen your facility’s security and monitoring capabilities.

• Immediate, tamper‑resistant lockdown and emergency shutdown control with a turn-to-reset mechanism for deliberate, supervised resets
• Universal Stopper protective cover and surface-mount spacer prevent accidental activation and allow neat mounting around exposed conduit
• Interchangeable gold‑plated N.O./N.C. contact blocks provide flexible integration with security and HVAC control systems
• Rugged polycarbonate and stainless steel construction rated for indoor/outdoor use and wide temperature ranges for reliable field performance
• ADA-compliant design and clear LOCKDOWN messaging improve visibility and accessibility in schools, healthcare and commercial facilities
• Surface-mount ready and compatible with common control voltages (120V/230V AC, 30V DC) to simplify installation and integration