Lifesafety Power RGA75B-C8Z 75W Power Supply
Overview
The Lifesafety Power RGA75B-C8Z is a 75W regulated power supply designed to deliver stable 12V (6A) or 24V (3A) output for door locks, access control readers, and small-format surveillance components in distributed access systems. This supply addresses the core integration problem: mixing different voltage requirements (12V readers and 24V electromagnetic locks) on a single power backbone without requiring separate circuits or stepping converters. The RGA75B-C8Z fits cabinet-mount or wall-mount installations where you need eight independently controlled relay outputs — each selectable for failsafe or failsecure logic — to manage lock behavior during power loss or alarm events.
Compatibility
The RGA75B-C8Z pairs with Lifesafety Power FAI (Failsafe/Failsecure Adapter Interface) systems and access control panels that require relay-switched 12V or 24V load management. Verify your panel's relay input specification and voltage requirement (12V or 24V DC) before selection — the RGA75B-C8Z commits to one voltage per installation. Each of the eight outputs is individually fused at 3A, so you can assign different logic modes (failsafe, failsecure, momentary) to separate relay channels without cross-feeding.
Installation Notes
Wire input and output terminals using 16–12 AWG cable per local electrical code. The eight relay outputs are field-selectable for failsafe or failsecure via jumper or terminal configuration — confirm your access control documentation for the correct jumper positions before powering the supply. Mount in a standard DIN-rail cabinet or wall-mount enclosure with adequate ventilation; the supply requires standard 24V AC input (±10%). Fuse the primary input circuit per local code; the output-per-relay 3A fuse protects individual lock circuits from overload.
