STI SS2429LD-EN Stopper Station Push Button with Shield
Overview
The STI SS2429LD-EN is a push button station assembly engineered for emergency egress and access control applications where durability and operator protection are non-negotiable. This unit pairs a tactile push button interface with an integrated protective shield housing—the shield guards the button mechanism from accidental activation and environmental exposure while keeping the button itself accessible for authorized personnel and emergency scenarios.
Rated for 30VDC magnetic lock systems, the SS2429LD-EN (often searched as SS2429LD EN) integrates into standard door control circuits and fits within typical security integrator workflows. The NEMA Type 23 enclosure rating means the unit can handle light industrial and commercial mounting environments without corrosion or mechanical degradation over time.
Key Features
- 30VDC Operating Voltage: Matches standard magnetic lock power supplies used across most access control installations, eliminating the need for voltage conversion or secondary circuits.
- NEMA Type 23 Rating: Provides protection against rain, sleet, and dust in light industrial and outdoor security applications. Not sealed to IP67 standards, but adequate for covered entry points and moderate environmental exposure.
- Integrated Shield Housing: Protects the button from tampering and accidental operation while maintaining operator reach. Improves durability in high-traffic or confined spaces where the button might otherwise contact walls or equipment.
- Compact Footprint: Measures 6.36 inches wide by 3.22 inches high with 1.25 inch mounting depth (when anchors are not used), fitting standard electrical box cutouts and panel configurations without requiring field modifications.
- Field-Installable Service Pin Kit: Optional accessory supports custom configuration and replacement without removing the entire station from the wall or door frame.
- Drill Template Included: 3/16 inch diameter hole template provided for accurate wall anchor positioning, reducing installation time and ensuring consistent mounting across multiple deployments.
Integration & Compatibility
The SS2429LD-EN integrates directly into 30VDC magnetic lock control circuits. Standard installation uses two wires (normally open push button contacts) connected to a door strike controller or access control panel output module. The station operates at logic-level voltages typical of commercial door control systems, making it compatible with most mainstream access control systems and electromagnetic lock installations.
No software configuration or network connection is required—this is a hardwired electromechanical device. Its role is purely as the physical operator interface to trigger the magnetic lock release. Installers should verify that the control panel output module supplies appropriate voltage and current capacity (consult the panel documentation for the SS2429LD-EN's connected load rating).
For high-security or traffic-intensive deployments, pair the SS2429LD-EN with commercial access control panels that offer relay outputs rated for continuous-duty electromagnetic loads. This ensures reliable operation across thousands of door cycles without contact wear degradation.
Mounting and Installation
The SS2429LD-EN is designed for wall or door-mounted installation. Standard bracket provisions support flush or surface mounting depending on site conditions. The unit accepts 3/16 inch diameter anchors and hardware (not included), allowing integration into drywall, cinder block, or metal frames. Drilling template simplifies layout during rough-in phases.
When to Choose a Different Model
If your application requires higher environmental ratings (full washdown or outdoor submersion), evaluate variants within the STI Stopper Station line that carry IP67 or higher certifications. If you need integrated audio feedback or visual signaling (LED indicators), consider a model combining the push button station with optional signaling modules. For applications requiring dual-button stations (request/cancel or dual-authorization scenarios), contact an integrator familiar with STI's modular accessory offerings.
Frequently Asked Questions
Q: Is the SS2429LD-EN suitable for outdoor use?
A: The NEMA Type 23 rating handles rain and light moisture at covered entry points. For fully exposed outdoor installations without overhang protection, consider a higher IP-rated variant in the STI product line.
Q: Can the SS2429LD-EN work with 12VDC magnetic locks?
A: No. The unit is rated for 30VDC operation only. Using a lower voltage will result in insufficient coil energization and lock failure. Use a 30VDC power supply and confirm your lock is rated for that voltage.
Q: What wiring gauge is required for the push button station?
A: Consult your access control panel's wiring standards and the magnetic lock manufacturer's specifications. Typically, 18 AWG or 16 AWG stranded copper is used for low-current control circuits; longer runs may require heavier gauge.
Q: Does the shield prevent emergency egress?
A: No. The shield protects the button but does not block access. Emergency personnel can still depress the button freely in egress scenarios.
Q: Is a service pin kit required during installation?
A: The service pin kit is optional. It is used only if you need to adjust or reconfigure the button contacts in the field after initial installation.
Ted PerryPerspective based on aggregated and affiliated engineering team experience.
The STI SS2429LD-EN is a straightforward hardwired push button station—no firmware, no IP connectivity, no analytics. What you get is mechanical simplicity paired with environmental protection via the integrated shield and NEMA Type 23 rating. The 30VDC requirement is standard across most commercial magnetic lock systems, so compatibility is rarely an issue if your access control panel supplies that voltage. The real value is the shield: it reduces accidental activation and extends button life in high-traffic areas by preventing direct contact with walls, equipment, or careless handling.
Technical Highlights:
- 30VDC Rated: Matches standard magnetic lock power supplies. Eliminates voltage conversion complexity and integrates directly into existing door strike circuits without additional modules.
- NEMA Type 23 Enclosure: Provides corrosion resistance and dust/rain protection for covered entry points. Adequate for light industrial and commercial security applications; not full IP67, so skip this for unprotected outdoor mounting.
- Compact Dimensions (6.36" W × 3.22" H × 1.25" D): Fits standard electrical box cutouts and panel-mounted configurations. Reduces installation complexity and adapts to tight entry vestibules or confined access points.
Deployment Considerations:
- Verify your access control panel output module supplies 30VDC at sufficient current. Consult the panel's relay specs and the magnetic lock's current draw before commissioning.
- Shield design is protective but not impervious to determined tampering. For high-security applications requiring button-defeat resistance, evaluate armored or recessed variants in the STI line.
- This is a normally open momentary contact push button—no sustained hold or integrated logic. The access control panel handles timing and lock energization; the SS2429LD-EN simply signals request.
The SS2429LD-EN is the right choice for standard commercial door control at entry vestibules, server rooms, and secured access points where the button needs protection from casual contact but emergency egress must remain unobstructed. Install it behind a standard 30VDC magnetic lock controller and you have a reliable, low-maintenance interface that will outlast the application.
