Protectowire Fire Systems
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Linear heat detection and fire system solutions for high‑risk environments
Protectowire Fire Systems deliver reliable, highly accurate linear heat detection and fire system control solutions designed for commercial, institutional, and industrial environments. From digital linear heat detectors to advanced fiber optic sensing technology, Protectowire systems provide early fire detection where traditional point detectors may be ineffective or impractical.
Designed for demanding applications, Protectowire solutions offer continuous line coverage, precise point sensitivity, low maintenance, and long service life—making them ideal for high‑risk and special hazard environments.Protectowire linear heat detector
The Protectowire Linear Heat Detector is a proprietary, fixed‑temperature digital linear heat detection cable that detects heat conditions anywhere along its length. This design provides continuous line coverage while maintaining point‑level sensitivity, making it ideal for long runs, confined spaces, and harsh environments.
How a Protectowire Linear Heat Detector Works
Operation
Detected
Touch
Triggered
How the Protectowire linear heat detector works
The sensor cable consists of:
- Two steel conductors individually insulated with a heat‑sensitive polymer
- Conductors twisted together to create constant spring pressure
- Protective tape wrapping and an outer jacket suited to the installation environment
When the detector reaches its rated activation temperature, the heat‑sensitive polymer insulation yields to the pressure between the conductors, allowing them to make contact and initiate an alarm signal.
Key advantages
- Detects heat at any point along its length
- No minimum heated length required to activate an alarm
- No calibration required to compensate for ambient temperature changes
- Provides line coverage with point sensitivity
- Long service life with low maintenance requirements
Protectowire outer jackets are engineered to resist corrosion, chemicals, moisture, and extreme temperatures, allowing the cable to be installed close to hazards for faster response times.
System integration
Protectowire Linear Heat Detectors are normally open contact devices and can be interfaced with intelligent fire alarm control panels using System Sensor monitor modules, including:
- M500MB
- M500DM
- M501M
- IM‑10
Confirmed temperature initiation (cti™) technology
Confirmed Temperature Initiation (CTI™) is a patented digital linear heat detection technology developed by The Protectowire Company. CTI enhances traditional digital linear heat detection by enabling short circuit discrimination.
Before initiating an alarm, CTI technology confirms that a true thermal event has occurred. This verification step significantly reduces false alarms caused by:
- Physical damage to the detector
- Accidental crushing or cutting of the sensor cable
CTI™ linear heat detector (CTI™ & CTM‑530)
Using thermocouple technology and dissimilar metal conductors, CTI™ Linear Heat Detectors can:
- Distinguish between a short caused by physical damage and one caused by heat
- Determine the exact alarm point location
- Identify the temperature of the short condition
If the detected temperature is below the fixed alarm rating, a trouble or fault condition is initiated. If the temperature is above the fixed alarm rating, an alarm condition is triggered.
Protectowire CTI Digital Linear Heat Detectors are the only digital linear heat detectors with built‑in short circuit discrimination, providing greater system reliability and confidence in alarm activation.
Fire alarm control panels
FireSystem 2000 (FS2000) fire alarm control panel
The FireSystem 2000 (FS2000) is a fully supervised, non‑coded fire alarm control panel available in multiple zone configurations. Its modular design allows the system to be customized with individual control modules to meet specialized system requirements.
Designed for commercial, institutional, and light industrial applications, the FS2000 is:
- UL Listed
- FM Approved
- Compliant with applicable NFPA 72 requirements
The FS2000 can be used for:
- Local and auxiliary protective signaling systems
- Proprietary fire alarm systems
- Sprinkler supervisory service
- Waterflow alarm monitoring
Preaction sprinkler or deluge system release
Standard system features
- Two (2) supervised detection circuits configurable as Class A (Style D) or Class B (Style B)
- Two (2) supervised Class B audible appliance circuits (Styles W & Y)
- Battery charger and battery monitoring
- Ground fault detection
- Lamp test functionality
- One (1) set of SPDT common alarm contacts
- Two (2) sets of selectable Form A or B common trouble contacts
- One (1) set of selectable Form A or B common supervisory contacts
Common trouble contacts may be programmed for silenceable or non‑silenceable operation.
FireSystem SRP‑4×4 control panel
The FireSystem SRP‑4×4 is a multi‑purpose fire alarm and releasing control panel designed for commercial and light industrial detection and extinguishing applications.
Features and specifications include:
- Programmable input and output circuits
- Field‑selectable Class A or Class B alarm initiating circuits
- Output circuits configurable for alarm, trouble, supervisory, or releasing functions
- Supports up to 10,000 ft (3,048 m) of Protectowire per zone
- Standard battery charger, lamp test, and ground fault detection
- Optional alarm point location meter
- Built‑in alarm, trouble, and supervisory relays
FiberSystem 8000 – Fiber optic linear heat detection
The Protectowire FiberSystem 8000 is a fiber optic linear heat detection system designed for high‑risk commercial and industrial hazards that demand advanced reliability and customized system features.
System components
- Type PFS Fiber Optic Sensor Cable
- PTS Series Controllers with configuration software
PTS controllers can be configured for various alarm criteria and can interface with approved fire alarm control panels using relay inputs and outputs. The FiberSystem 8000 is ideal for applications requiring:
- High reliability
- Precise temperature monitoring
- Long‑distance detection
- Performance in harsh environments
Battery cabinets
G‑.5 Battery Cabinet
- Color: Red
- Dimensions: 12.25″ W × 7.125″ H × 4.5″ D
- Accepts battery sizes: PS‑1270, PS‑6100
- Enclosure rating: NEMA 1
E‑.5 Battery cabinet
- Color: Red
- Dimensions: 20″ W × 12″ H × 7″ D
- Accepts battery sizes: PS‑12180, PS‑12330, PS‑12400
- Enclosure rating: NEMA 1
Need reliable fire detection for a high‑risk or hard‑to‑protect environment?
Speak with a fire detection specialist to review your application, operating conditions, and risk profile.
FAQ: Protectowire fire systems
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A linear heat detector is a continuous sensor cable that detects heat anywhere along its length rather than at a single point.
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Protectowire offers fixed‑temperature digital detection with point sensitivity, CTI™ technology for false alarm reduction, and multiple system integration options.
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CTI™ is a patented technology that confirms thermal activation before triggering an alarm, helping prevent false alarms caused by physical damage.
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They are commonly used in industrial plants, tunnels, cable trays, conveyors, parking structures, power generation facilities, and other high‑risk environments.
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Yes. Protectowire systems can interface with intelligent fire alarm control panels and approved control systems using monitor modules or relay connections.