Nascom N205AU/STFB Overhead Door Switch with Universal Magnet, Open Loop, Normally Closed, 1FB, Switch/Magnet Set, Silver

Securely monitor commercial and industrial overhead doors with the Nascom N205AU/STFB overhead door magnetic contact switch. Designed for reliable security and alarm monitoring, this switch/magnet set uses No Dead Spot technology and a wide-gap N35 NdFeB rare-earth magnet to maintain consistent contact even when doors shift side-to-side, reducing nuisance alarms and maintenance calls. The N205AU/STFB is an open-loop (normally closed) contact assembly that gives installers flexible configuration options to optimize gap performance.

Built for tough environments, the unit features 36" 22 AWG wire leads and a 24" armored cable lead for extra protection during installation and daily operation. The extruded anodized aluminum housing and industry-standard switch mounting holes simplify retrofits and new installs, while UL634 listing ensures compliance with commercial security requirements. With a 30V DC, 0.2A rating, this magnetic contact integrates seamlessly into access control, alarm, and surveillance systems.

Specify the Nascom N205AU/STFB when you need dependable overhead door monitoring for warehouses, loading docks, and industrial facilities — order now to upgrade your perimeter security and reduce false alarms.

• Reliable overhead door monitoring that reduces false alarms with No Dead Spot technology
• Wide-gap N35 NdFeB magnet for generous alignment tolerance and fewer service calls
• Universal mount and industry-standard holes for fast, hassle-free installation
• Durable wiring: 36" 22 AWG leads plus 24" armored cable for protected, long-lasting connections
• UL634 listing and commercial-grade construction for code-compliant security and access control systems