The Protectowire CTM-530 is an interface module for Protectowire CTI (Confirmed Temperature Initiation) linear heat detectors. Specifically, the module connects each linear heat detector zone to the fire alarm control panel through a supervised circuit. Furthermore, the CTM-530 includes a graphical LCD display that shows zone status and alarm location.
How the Protectowire CTM-530 reduces false alarms
The CTI linear heat detector consists of a twisted pair of dissimilar spring conductors. Then a heat-sensitive polymer insulation surrounds the conductors. When the rated alarm temperature is reached, the polymer softens. As a result, the conductors short and form a thermocouple junction. Furthermore, the CTM-530 reads the thermal signature at the junction. Therefore, the module can distinguish a real thermal alarm from a simple mechanical short caused by physical damage. This is the core “Confirmed Temperature Initiation” feature.
Configurations and zone capacity
The CTM-530 supports both Class A and Class B detector wiring. In addition, the module supervises up to 4,000 feet (1,220 m) of CTI linear heat detector per zone. Also, an optional intrinsic safety barrier is available for hazardous-location applications. Therefore, the module fits both standard commercial deployments and Division 1 / Division 2 installations.
Typical applications
Installers deploy the CTM-530 with CTI cable in cable trays, conveyor systems, transformer rooms, and warehouse rack storage. Furthermore, the module suits sites where mechanical damage would otherwise trigger nuisance alarms.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 1.5 lbs |
|---|---|
| Dimensions | 4 × 8 × 7 in |
| Condition | New |
| Manufacturers | Life Safety |
| Part Type | Interface Module |
