System Sensor ISO-6A Six Circuit Fault Isolator Module – UL/FM Approved, Class B Isolation for Fire Alarm Loops
Enhance the resilience and reliability of your addressable fire alarm system with the System Sensor ISO-6A Six Circuit Fault Isolator Module. This crucial component is designed to prevent a single short circuit on the Signaling Line Circuit (1$\text{SLC}$) from compromising the entire detection loop, ensuring that crucial communication integrity is maintained across the network.2
Advanced Multi-Circuit Isolation
The ISO-6A module provides six independent isolation points, offering superior protection and segmentation compared to standard single-circuit isolators:3
- Six Individual Circuits: Features six individual, Class B isolator circuits.4 This allows a single module to protect multiple sections of the loop or six distinct input zones.5
- Automatic Restoration: The module acts as an automatic switch, opening the circuit when the line voltage drops below 6$\text{4 volts}$ (indicating a short).7 When the short circuit is removed, the module automatically restores the 8$\text{SLC}$ communication loop to its normal operating condition.9
- Segment Protection: Isolator modules are strategically spaced within the loop to protect groups of sensors or modules.10 If a short occurs between any two isolators, the affected segment is immediately isolated, while the remaining units on the loop continue to fully operate.
Key Features and Compliance
Designed for ease of installation and regulatory compliance:
- Visual Status Indication: Each of the six inputs features an individual amber LED indicator.11 The LED blinks during the normal state and will latch on during a short circuit condition, providing immediate and localized visual fault identification.
- Installer Friendly: Includes removable 12 to 18 AWG plug-in terminal blocks and mounting hardware, simplifying the wiring and installation process.12
- Mounting Options: Can be mounted into a variety of enclosures, including up to two modules in the optional IDP-ACB enclosure.
Certifications and Approval
The ISO-6A meets the highest standards for fire safety components:
- Certifications: UL, ULC Listed, FM Approved, and CSFM (California State Fire Marshal).13
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