STI SS2421NT-EN Stopper Station with Shield, Indoor, Flush or Surface, Turn-to-Reset, No Label, Blue

Built to reduce false alarms and deliver dependable emergency control, the Safety Technology International Stopper Station SS2421NT-EN is an indoor push-button solution for security, lockdown and monitoring systems. The curved, shielded design prevents accidental activation while the turn-to-reset operation ensures incidents are acknowledged and reset deliberately — ideal for high-traffic areas where reliability matters. Serviceability is streamlined with interchangeable gold-plated N.O./N.C. SPST contact blocks (standard 6A @ 600 VAC or 1A @ 250 VDC ratings) and the unit supports up to three isolated contact sets for flexible integration. Choose flush or surface mounting to suit site requirements; the ADA-compliant station is UL/cUL listed for peace of mind. Finished in blue with no printed text for a low-profile, discreet appearance, the SS2421NT-EN fits seamlessly into access control, surveillance and building monitoring systems. Specify the SS2421NT-EN for school lockdowns, healthcare duress points, retail loss-prevention or any facility safety upgrade — contact sales or order today to add reliable emergency push-button control to your security infrastructure.

• Prevents accidental activations with a curved shield and protective cover, reducing false alarms and ensuring system integrity
• Turn-to-reset mechanism gives controlled, deliberate rearming after an event for secure lockdown and emergency workflows
• Interchangeable gold-plated N.O./N.C. contact blocks simplify field servicing and customization for different control circuits
• Flush or surface mount versatility and ADA compliance make installation straightforward across schools, healthcare, retail and commercial sites
• UL/cUL listing and durable polycarbonate/stainless construction deliver reliable performance in indoor security, monitoring and surveillance installations