STI SS2021LD-EN Indoor Only Flush or Surface Turn-to-Reset Stopper Station with LOCKDOWN, Red

Provide fast, tamper-resistant lockdown activation for indoor security and emergency response with the Safety Technology International Stopper Station SS2021LD-EN. This indoor-only lockdown push button is built to protect against accidental activation—the curved shell and protective cover ensure intentional use when integrated with alarm panels, access control or monitoring systems. The SS2021LD-EN features a turn-to-reset mechanism for clear event acknowledgement and interchangeable gold-plated SPST contacts rated 6 amps @ 600 VAC or 1 amp @ 250 VDC, giving you flexible wiring options for critical security and surveillance circuits. Designed for both flush and surface mounting and compliant with ADA standards, it fits classroom, office, and control-room environments. With support for 120V/230V AC and 30V DC inputs and rugged materials (PC and stainless steel), the unit performs reliably across wide temperature ranges. Ideal for facility managers, integrators and security teams looking to bolster physical security, lockdown procedures and emergency monitoring. Equip your access control or alarm system with the STI SS2021LD-EN—contact us to specify or order for your next lockdown or emergency response installation.

• Instant, tamper-resistant lockdown activation reduces response time during emergencies
• Turn-to-reset design and protective curved cover prevent accidental alarms and ensure dependable operation
• Interchangeable gold-plated contacts (6A @ 600 VAC / 1A @ 250 VDC) for flexible integration with alarms and access control
• Flush or surface mounting and ADA-compliant form factor simplify installation in corridors, classrooms, and control rooms
• Designed for indoor security use with 120V/230V AC or 30V DC support—reliable in wide temperature ranges