Secutron MRI-4070-M Multi Isolator Module for SLC Loop

Keep your fire alarm SLC loop operational and minimize downtime with the Secutron MRI-4070-M Multi Isolator Module. This control panel module is built for Secutron-compatible fire alarm control units to isolate short-circuit faults so a single compromised segment won’t disable the entire signaling line circuit (SLC). The MRI-4070-M delivers eight electrically isolated sections, each featuring an LED that blinks under normal conditions and illuminates solid during a short—speeding visual fault identification and reducing troubleshooting time. Each section self-restores when the short is cleared and supports up to 0.4 A load per section; the isolator trips above 10 Ω for dependable protection. As a hardware-only device requiring no address, installation is fast with plug-in terminal blocks and tool-free DIN-rail mounting, saving labor on site. Scalable without module quantity limits (within loop current capacity) and compatible with MMX backbox options or standard UL/ULC enclosures, the MRI-4070-M is ideal for security, surveillance, and building monitoring systems that demand high availability. Add this isolator module to your fire control panel to boost resilience and simplify maintenance—contact sales or order online today.

• Keeps SLC loops operational during a short circuit to minimize system downtime and service calls
• Eight independently isolated sections with LED status for fast identification and targeted troubleshooting
• Self-restoring isolation that automatically reconnects when the fault is cleared, improving system uptime
• Supports up to 0.4 A per section and trips above 10 Ω, ensuring reliable protection for typical SLC device loads
• Tool-free DIN-rail mounting and plug-in terminal blocks for fast installation and reduced labor costs
• Hardware-only design (no address required) and scalable installation for flexible control panel integration