Edwards Signaling 502A Electric Door Switch

Engineered for reliable door-status detection, the Edwards Signaling 502A electric door switch provides consistent contact closure for security, surveillance and access control applications. This plunger-style switch from Edwards Signaling can be wired normally open or normally closed (NO/NC) to match your existing alarm, monitoring or access control logic, reducing rework during installation. Operating on standard 120V AC and measuring just 1.4" wide by 4" high, the compact footprint and painted gold faceplate deliver a professional appearance while fitting tight frame spaces. UL certification and robust construction ensure long-term, code-compliant performance in commercial and institutional settings. Installers benefit from straightforward wiring and flexible mounting that cut labor time and minimize downtime for critical infrastructure. Use the 502A for perimeter door monitoring, auxiliary alarm contacts, or to tie doors into CCTV and access control systems for improved surveillance and incident response. For a dependable, easy-to-integrate electric door switch that strengthens your security and monitoring setup, add the Edwards Signaling 502A to your next order or contact your supplier to specify it on projects.

• Reliable door-status detection for improved security and reduced false alarms
• Versatile NO/NC wiring to integrate with existing alarm, access control or monitoring systems
• Compact 1.4" wide x 4" high profile fits tight door frames and maintains a clean install appearance
• Standard 120V AC compatibility for easy integration into commercial electrical systems
• UL-certified, painted gold faceplate for durable, code-compliant performance in high-traffic environments