Lifesafety Power BX75-C8D8E1 8 Relay Lock Control Outputs Fused

Overview

The BX75-C8D8E1 is an 8-output relay expansion module for Lifesafety Power access control systems. Each relay output handles 3A at the lock circuit, with independent fusing per output — meaning a single jammed lock won't cascade failure across your entire door control line. Each relay is selectable for FAI (failsafe/failsecure logic), letting you configure fail-open or fail-locked behavior per door without rewiring. Pairs with FAI-compatible control panels to extend lock management beyond the panel's native relay count — essential when you're expanding a system across multiple zones or retrofitting additional secured doors into an existing cabinet.

Compatibility

Designed for Lifesafety Power FAI-series access control panels and systems. Connects via the Single FPO Buss/Flex Cable Kit 2 (included). Verify your panel supports FAI relay expansion before purchasing — confirm with your integrator or panel documentation that your specific Lifesafety Power controller lists the BX75-C8D8E1 as a compatible expansion module.

Installation Notes

Each of the 8 relay outputs is individually fused at 3A — verify your lock solenoids and strike mechanisms draw under 3A per output under worst-case conditions (high inrush current during simultaneous unlock commands). The module also includes 8 DC auxiliary outputs fused at 3A each, selectable for Bus1 or Bus2 distribution — useful for status signaling (LED indicators, door sensors feedback) without consuming relay capacity. Mount in the same cabinet or enclosure as your FAI controller; the cable kit handles the electrical interconnection. Confirm 24VDC auxiliary power availability at the control panel before final commissioning.