Lifesafety Power RGA75B-C8D8Z Gemini Rack Mount Power Sys RGA75B
Lifesafety Power RGA75B-C8D8Z Gemini Rack Mount Power Sys RGA75B
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Description

Lifesafety Power RGA75B-C8D8Z Dual Voltage Rack Mount Power System

Overview

The RGA75B-C8D8Z is a compact 3U rack-mount power distribution and battery backup unit designed for access control systems requiring redundant power and supervised outputs. It consolidates multiple power modules—dual-voltage supplies, relay switching, and auxiliary feeds—into a single UL-listed enclosure, eliminating the need for separate cabinets and reducing wiring complexity. The unit delivers 75W total output across configurable 12V and 24V zones, making it suitable for small-to-medium enterprise door control installations and distributed access sites.

Key Features

  • Dual-voltage architecture: 12V and 24V outputs selectable per zone, accommodates mixed lock types and solenoid voltages without external converters.
  • Battery backup and monitoring: Built-in charger extends battery life; low-battery cutoff prevents deep discharge and premature battery degradation. Fire alarm disconnect automatically unlocks doors on alarm signal—critical for life-safety compliance.
  • Eight relay lock outputs (C8): 3A fused, programmable for failsafe or failsecure logic per zone; supports NC/NO inputs and dry or voltage-mode switching.
  • Eight auxiliary outputs (D8): 3A fused feeds with dual buss voltage selection, enabling independent control of ancillary devices (LED indicators, solenoids, sensors).
  • Protection and notification: Enhanced surge immunity on input and output; OutSmart dual-color LEDs (12V green, 24V blue) provide visual power-state confirmation. AC fault and system fault relays trigger on low/no battery, ground faults, supply failure, or blown fuses.
  • Network-ready: Optional Netlink module enables remote battery testing and power supply monitoring via web dashboard—valuable for multi-site or remote facilities.

Physical & Environmental

Enclosure: 3.5H × 19.0W × 20.5D inches. System weight: 28.6 lbs. Standard 19-inch rack rail mounting. Designed for controlled indoor environments (electrical closets, server rooms).

When to Choose This Model

Select the RGA75B-C8D8Z when deploying medium-scale access control with mixed voltage locks, battery backup is mandatory, and centralized power management reduces installation labor. The programmable relay outputs and dual buss support complex door logic (tailgater detection, area-based failsafe/failsecure rules). Network monitoring is optional, scaling from basic to enterprise oversight.

Expert Analysis
Specifications
Form Factor: Rack mount (19-inch, 3U)
Approvals: UL listed
Input Voltage: 120 VAC
Output Voltage: 12VDC / 24VDC dual selectable per zone
Max Current: 3A per fused output
Number of Outputs: 16 (8 relay lock + 8 auxiliary)
Battery_Backup: Integrated charger, low-battery cutoff, optional Netlink remote monitoring
Enclosure_Dimensions: 3.5H × 19.0W × 20.5D inches (8.89 × 48.26 × 52.07 cm)
Supervision: AC Fault and System Fault relays triggered by low/no battery, short to earth ground, power supply failure, or blown fuse
Brand: Lifesafety Power
MPN: RGA75B-C8D8Z
Type: Power Supply
Color: Blue
Power: 75W
Power Watts: 75W
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Lifesafety Power RGA75B-C8D8Z Rack Mount Power

$1,540.00
$1,011.99
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