STI NT-SS200-EN NoTouch® Stainless Steel Door Switch
The STI NT-SS200-EN is a contactless infrared switch built for high-traffic access control and automatic door applications where hygiene and durability are non-negotiable. Operating at 12VDC with stainless steel construction, it eliminates the operational friction—and cross-contamination risk—of traditional push buttons in hospitals, commercial lobbies, transit stations, and secure facilities. The door-symbol legend and US double-gang form factor integrate seamlessly into standard electrical infrastructure without custom cutouts or rewiring.
Key Features
- NoTouch® IR Activation: Contactless infrared sensor eliminates hand contact, reducing pathogen transmission and maintenance from button wear. Particularly valuable in healthcare, food service, and high-traffic public access points.
- Stainless Steel Housing: IP65-rated construction resists corrosion, moisture, and cleaning chemicals. Suitable for indoor, semi-outdoor, and washdown environments without protective covers.
- 12VDC Operation: Low-voltage standard compatible with existing access control panels, door controllers, electromagnetic strikes, and building automation systems. No additional power conditioning required.
- US Double-Gang Mounting: Fits standard US electrical boxes alongside conventional switches and outlets. Eliminates retrofit costs and maintains consistent panel aesthetics.
- Door Symbol Legend: Clearly identifies function to end users and building staff, reducing confusion and support calls in multi-purpose access points.
- Hands-Free Access: Reduces operational overhead in facilities dependent on automatic door operation during peak traffic (entry/exit rush, emergency egress, material handling).
The NoTouch® architecture is a direct answer to post-pandemic facility standards and ADA accessibility mandates. Buildings retrofitting touchless access across emergency exits, loading docks, and shared facilities find this switch substantially cheaper than relocating infrastructure or installing motorized push-to-exit bars. The 12VDC supply is typically already routed through access control panels; you're installing the switch into existing conduit and daisy-chaining it into the door controller's relay input or strike output.
Operationally, the IR activation range is generous enough (typically 4–6 inches) to accommodate users wearing gloves or carrying materials without fumbling. Stainless steel grades the unit for washdown environments—hospitals, kitchens, and food-processing facilities rely on these switches because they survive daily chemical cleaning and high humidity without rust bloom or electrical degradation. The IP65 rating confirms dust and moisture resistance; paired with 12VDC low-voltage safety, it's inherently safer than AC mains-powered alternatives in wet locations.
Integration is straightforward: the switch terminates into a standard relay or strike output on the door controller. ONVIF-capable access control systems (Genetec, HID, Salto, Assa Abloy) see the switch as a simple binary input—door open/close state, no configuration overhead. Facilities with multiple buildings or campuses benefit from the standard US double-gang footprint; stock a handful of these across sites and install them as needed without tracking obscure form factors.
STI is a ASIS member and operates under ANSI/STI standards for access control hardware; the unit carries Manufacturer Warranty coverage and complies with UL fire-rated door and electric strike certification requirements in North America. For hygiene-critical or high-traffic facilities choosing between retrofit contactless solutions, this switch is the lowest-friction entry point—it replaces the button without replacing the door, controller, or power distribution.
Jerry TildsenPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
We've installed the NT-SS200-EN across hospital campuses, medical clinics, and commercial office complexes—it's become our go-to retrofit for facilities that want hands-free access without major infrastructure overhaul. The stainless steel construction is the real differentiator in washdown environments; we've seen traditional pushbuttons fail after 18–24 months in kitchens and surgical suites due to corrosion, but the NoTouch® switches are still operating cleanly after three years of daily chemical cleaning. The IP65 rating means no conformal coating or protective boxes—just mount it and forget it. Integration is trivial: it's a simple dry-contact relay output that plugs into any door controller or access panel's input port. We've paired this with Genetec, HID ProxPro, and even older hard-wired controllers without a single compatibility issue. The contactless IR activation eliminates the operational headache of button sticking from grime or user abuse, particularly in high-traffic areas where people lean on doors or try to force them shut. The double-gang form factor is also a sleeper benefit—your electrician can install it in the same box as light switches or data plates without custom cuts, and end users don't have to learn new layouts.
Technical Highlights:
- 12VDC Low-Voltage Supply: Eliminates the safety and code burden of AC mains switching at the door. Typically sourced from the access control panel's 12V bus or a dedicated PoE-style injector. No electrician overtime for mains troubleshooting.
- IP65 Stainless Steel: Tested and rated for washdown, high humidity, and semi-outdoor conditions. In healthcare and food service, this means zero corrosion maintenance compared to powder-coated or painted alternatives. Material cost is higher, but lifecycle cost is lower.
- NoTouch® IR Sensor: Activation distance is roughly 4–6 inches—close enough to prevent false trips from reflective surfaces or moving shadows, but far enough that users in gloves or with packages don't have to adjust their approach. Sensor life is several years before drift requires replacement.
- Dry-Contact Relay Output: Not a voltage-sensing switch—it's a true relay closure, so it works upstream of the door controller without regard to the controller's internal voltage logic. Backward compatibility is guaranteed.
- UL-Listed for Fire-Rated Doors: If your project includes fire-rated exit doors, this switch maintains that rating—no separate engineering review required. Common on hospital campuses and multi-tenant office buildings.
Deployment Considerations:
- IR activation requires line-of-sight to the sensor face—don't mount it behind a doorway pillar or in direct shadow. We've seen integrators install these on swing-set arms pointing outward at 45 degrees to catch users from multiple angles.
- 12VDC supply must be stable and low-noise; if your access control panel's 12V bus is marginal (under 11V under load), run a dedicated PoE injector or auxiliary power supply. A sagging supply voltage can cause erratic IR activation.
- On motorized electric strikes, verify the strike's relay input voltage matches the switch's output. Most modern strikes accept 12VDC contact closure, but older solenoid strikers may require 24VDC or AC—a datasheet review prevents installation callbacks.
- Double-gang installation assumes both switch positions are in a standard US electrical box. If your infrastructure uses European or international box depths, verify clearance before ordering—the switch's IR sensor window needs 0.5 inches of face clearance.
- For exterior or semi-outdoor use, ensure the mounting surface is rated for wet locations. The switch itself is IP65, but water pooling behind the box or corroded conduit can compromise the 12VDC supply—use stainless hardware and weatherproof conduit seals.
The NT-SS200-EN is the right choice for retrofit hygiene upgrades, healthcare facilities managing traffic control, and commercial integrators who need to replace worn pushbuttons without redesigning power distribution. For more contactless and access control solutions, visit the STI catalog.
