Magnasphere MSS-312C-GRAY-FIRE Recessed Magnetic Reed Switch, Fire Rated, SPST, 1" Lead, 3-Switch, Gray

Designed for reliable perimeter and door monitoring in commercial security deployments, the Magnasphere MSS-312C-GRAY-FIRE recessed magnetic reed switch delivers code-compliant performance where safety and aesthetics matter. This Magnasphere contact magnet is fire-rated and UL-10C Classified, making it suitable for rated door and frame assemblies while maintaining life-safety requirements. The MSS-312C features three separate SPST contact outputs and a 1" lead, allowing a single recessed sensor to feed alarm panels, access control systems and fire-monitoring circuits simultaneously—reducing hardware count and installation time. Its recessed, low-profile gray housing minimizes tamper exposure and preserves door appearance for surveillance-sensitive areas. Ideal for security integrators and facility managers, the MSS-312C supports reliable, long-term monitoring in retail, education, healthcare and multi-tenant buildings. Specify this Magnasphere recessed magnetic reed switch when you need a fire-rated, multi-output contact for secure access and alarm system integrations. Contact our sales team or add to your cart to streamline security, surveillance and access control installations.

• Simplify multi-system monitoring with three independent SPST outputs so one sensor can trigger alarms, access control and building management simultaneously.
• Maintain fire-rated integrity (UL-10C Classified) for installations in rated walls and doors, protecting life-safety and code compliance.
• Low-profile recessed design reduces tampering and preserves door/frame aesthetics while supporting discreet security and surveillance installations.
• 1" lead wire for straightforward wiring in confined spaces—speeds installation and reduces labor time on retrofits and new builds.
• Durable gray finish and proven Magnasphere technology deliver reliable contact magnet performance for long-term perimeter and door monitoring.