The MSS-321C from Magnasphere is a 1″ Recessed / Concealed Contact with 3 Switches, 2 Open Loop, 1 Closed Loop. Magnasphere’s MSS-300 Series of Recessed and Surface-Mount Contacts offer two or three separate contact outputs; ideal for installations where a single contact is desired for use with multiple independent systems (e.g. IDS and ACS) and Home Automation applications. In response to a request from the U.S. Department of State, Magnasphere has introduced both a 1” concealed and a surface mount version of multiple switch contacts for non-high security installations. They are offered in two and three contact configurations and in both Open and Closed Loop variations, depending on installation requirements. The MSS-300 Series provides a single switch solution for monitoring multiple systems (Intrusion Detection and Access Control) and for Home Automation applications. Older style security contacts have been made with a decades-old technology call the Reed switch, which have three inherent weaknesses when used as security contacts. They are (1) Easily defeated with magnets (2) Prone to permanent contact weld failure (lightning, power surges) and (3) Fragile (made mostly of glass, they are subject to damage even when packaged as security contacts). The unique Magnasphere switch used in these devices renders the MSS-300 series products virtually unbreakable and highly resistant to permanent contact welding and outsider magnetic defeat.
Magnasphere MSS-321C Features
- Multiple Contact Outputs: Offers 2 or 3 individual contact outputs, allowing for versatile installation in various security and automation systems.
- Open and Closed Loop Configurations: Available in both configurations to meet diverse installation requirements and enhance security monitoring.
- Low Profile Design: Comes in a 1″ diameter recessed and surface-mount options, allowing for discreet installation without compromising security.
- Universal Compatibility: Designed to work with all control panels, ensuring seamless integration into existing systems.
- American-Made Technology: Features patented Magnasphere switch technology, providing superior reliability and performance.
- Resistant to Welding: Highly resistant to permanent contact welding from power surges and lightning, ensuring long-term durability.
- Enhanced Security: Provides the highest level of security for every installation, making it ideal for sensitive environments.
Magnasphere MSS-321C Detailed Specifications
| Feature | Details |
| Model | MSS-321C |
| Type | 1″ Recessed / Concealed Contact |
| Switches | 3 (2 Open Loop, 1 Closed Loop) |
| Installations | Intrusion Detection Systems & Access Control |
| Construction | Low profile recessed, Surface-mount, Armored cable versions |
| Compatibility | All control panels |
| Manufacturing | American-made |
| Technology | Patented Magnasphere switch technology |
| Welding Resistance | Resists permanent contact welding |
| Security Level | Highest level for installations |



















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