Nascom N505ASCD/ST2CR Shorty Might O/H Door Rail Mount Dual Closed Loop Switch for Curtain Doors

Protect curtain and roll-up doors from nuisance alarms and unreliable reads with the Nascom N505ASCD Shorty Might O/H Door Rail Mount Dual Closed Loop Switch — a magnetic contact designed for professional security, surveillance and access control systems. Its compact 2-inch short block and L-bracket make rail or overhead mounting fast and unobtrusive in tight installations, while the high-performance N35 NdFeB rare-earth magnet delivers an extra-wide gap margin for consistent detection.

Nascom’s unique NO DEAD SPOT technology prevents false alarms caused by door warping or shifting, improving monitoring accuracy and reducing costly service calls. Durable field-ready features include an armored 24-inch cable lead, 36-inch 22 AWG wire leads, a protective wear pad and extruded anodized aluminum construction. UL634 listing ensures the switch meets recognized safety and performance criteria for commercial projects.

Ideal for rollup and curtain door perimeter monitoring, retrofit access control, and integrated surveillance applications, the N505ASCD provides reliable, low-maintenance operation. Specify the Nascom N505ASCD magnetic contact for your next security installation or order now to upgrade door protection and reduce false alarms.

• Prevents false alarms on warped or shifting curtain/rollup doors with NO DEAD SPOT technology
• Maximizes detection gap with a powerful N35 NdFeB rare-earth magnet for dependable security monitoring
• Compact 2-inch short block and L-bracket simplify rail/overhead mounting in tight spaces
• Armored 24-inch cable lead and 36-inch 22 AWG wire leads protect connections for long-term durability
• UL634-listed, extruded anodized aluminum housing resists corrosion and meets professional installation standards