STI SS2421NT-EN Stopper Station with Shield, Indoor, Flush or Surface, Turn-to-Reset, No Label, Blue
Special Order: typically 2–6 weeks
Ships directly from the manufacturer. This is an estimated lead time, not a guaranteed delivery date.
Availability can change and lead times may be longer. If your project has a deadline, check with us before ordering.
A member of our team will check with the manufacturer and personally reply by email.
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Key Features
- 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
Quick Specifications
- Product Model
- SS2421NT-EN
- Brand Name
- Safety Technology International
- Product Line
- Stopper Station
- Product Name
- Stopper Station SS2421NT-EN Push Button
Explore the details
Product information
SS2421NT-EN
Overview
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.
Features
- 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
| General Information | |
|---|---|
| Brand Name | Safety Technology International |
| Manufacturer | Safety Technology International, Inc |
| Product Line | Stopper Station |
| Product Name | Stopper Station SS2421NT-EN Push Button |
| Product Type | Push Button |
| Product Model | SS2421NT-EN |
| Product Series | SS2 |
| Application/Usage | Indoor |
| Manufacturer Part Number | SS2421NT-EN |
| Technical Information | |
| Maximum Timer Duration | 1min |
| Minimum Timer Duration | 2s |
| Environmental Conditions | |
| Maximum Operating Temperature | 250°F |
| Minimum Operating Temperature | -40°F |
| Physical Characteristics | |
| Color | Blue |
| Material | Polycarbonate, Stainless Steel |
| Power Description | |
| Input Voltage | 120V AC, 230V AC, 30V DC |
| Product Information | |
| Mount Type | Flush Mount |
| Contact Type | NO/NC (Combination) |
| Print/Message | No Text |
| Warranty | |
| Limited Warranty | 1-Year |
| Miscellaneous | |
| Features | Flush Mount, Surface Mount, Turn-to-Reset |
| ADA Compliant | Yes |
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Is this right for your project?
Confirm the model, required accessories and delivery needs before ordering.
- SKU:
- SS2421NT-EN
- Manufacturer part:
- SS2421NT-EN
How do I confirm compatibility?
Check the specifications and manufacturer documents for your existing system. Send us your model numbers and project requirements if you need help selecting equipment or accessories.
Ask a product specialistWhen will this item ship?
Availability is shown above. Special-order items and project quantities may need additional lead time. Contact us to confirm a delivery date before scheduling installation.
Shipping, freight and delivery detailsWhat should I know about returns?
Returns require an approved RMA. Consult the linked return policy for deadlines and eligibility. For standard non-defective returns, eligible factory-sealed items carry a 15% restocking fee and customer-paid return shipping; open-box and used items are refused. Defective and DOA claims follow the policy's separate terms. Special orders and other exclusions are final sale.
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STI SS2421NT-EN Stopper Station with Shield, Indoor, Flush or Surface, Turn-to-Reset, No Label, Blue
SS2421NT-EN