Magnasphere MSS-311S Surface Mount Multi-Switch Contact with Armored Cable, Switches, Open Loop, Closed Loop

Deliver reliable, tamper-resistant door sensing for commercial security and surveillance systems with the Magnasphere MSS-311S Surface Mount Magnetic Contact. Built on Magnasphere’s proven switch technology (not a reed switch), the MSS-311S resists breakage and false alarms to reduce maintenance and downtime in access control, alarm and remote monitoring installations. The unit includes armored cable and an aluminum housing for enhanced durability in high-traffic or exposed locations, and offers both open and closed loop outputs for flexible integration with multiple independent systems. With a compact surface-mount profile and a consistent 0.28" sensing gap, the MSS-311S installs quickly while delivering predictable performance. It operates on standard DC power (30V DC input) and consumes minimal power, making it suitable for enterprise security infrastructure. TAA compliant and US-made, this magnetic contact is ideal for government, commercial and industrial deployments. Add the MSS-311S to your next access control, alarm panel or surveillance project to improve reliability and protect critical entry points.

• Armored cable and aluminum housing provide vandal-resistant, long-lasting protection for critical security doors
• Hybrid wired design with open and closed loop outputs enables easy integration with alarm panels, access control and monitoring systems
• Magnasphere non‑reed switching technology won’t break or fuse, delivering dependable operation and lower maintenance over time
• Compact surface-mount form factor (0.5" x 1") simplifies installation on frames and jambs without costly modifications
• Consistent 0.28" gap performance ensures reliable sensing for surveillance and intrusion detection applications
• TAA-compliant, US-made construction supports government and enterprise procurement requirements