Edwards APS6A Auxiliary Power Supply for EST3 Fire Alarm and Emergency Communication Systems

Edwards Signaling · Fire & Life Safety

Description  The Edwards APS6A is a UL 864, 10th Edition listed auxiliary power supply designed to provide regulated 24 VDC power for fire alarm, mass notification, and emergency communication systems. This Edwards APS6A power supply supports additional notification appliance circuits (NACs) or auxiliary power distribution while providing supervised operation, battery charging, and reliable backup for life safety applications. It is housed in a durable steel enclosure that accommodates expansion modules and standby batteries.     Technical Specifications  Condition New/Never Used Surplus Brand Edwards Category Fire Alarm Systems Part Number APS6A Subcategory Auxiliary Power Supply Series EST3 Multiplexed Fire Alarm System Power Supply Type Auxiliary Power Supply Output Voltage 24 VDC Filtered, Regulated, Supervised Output Capacity 6.5 A Total Notification Appliance Circuits 4 Class B (Convertible to 2 Class A) Maximum Output Per Circuit 3 A Battery Capacity Up to Two 24 Ah Batteries Battery Charging Integrated Supervised Battery Charger Compatible Modules AA-30, AA-50, SIGA-UIO, SIGA-REL, MN-BKRT3 Accessories Cabinet Material Lockable Steel Enclosure Status Active Color Red Weight 33 lbs     Information About APS6A The APS6A is a 6.5-amp auxiliary power supply from the Edwards EST3 Series, engineered to expand power capacity for fire alarm and emergency communication installations. It delivers filtered, regulated, and supervised 24 VDC output while monitoring both AC input and standby batteries to maintain continuous system operation during power interruptions. The enclosure supports four Class B notification appliance circuits that can be converted into two Class A circuits and accommodates optional Signature audio amplifiers, relay modules, and communication accessories for flexible system expansion. Designed for commercial life safety installations, the APS6A integrates seamlessly with Edwards EST3 multiplexed fire alarm systems while meeting UL 864 requirements for dependable operation. Key Features: Filtered 24 VDC Output: Supplies regulated and supervised 24 VDC power for life safety equipment. Four NAC Outputs: Includes four Class B notification appliance circuits convertible to two Class A circuits. 6.5 Amp Capacity: Provides up to 6.5 amps total output with individual circuits rated for up to 3 amps. Integrated Battery Charger: Monitors and charges internal or external standby batteries automatically. Steel Lockable Cabinet: Rugged enclosure supports up to two 24 Ah batteries and protects internal components. Expansion Module Support: Compatible with AA-30, AA-50, SIGA-UIO, SIGA-REL, and optional communication modules. Supervised Operation: Continuously supervises AC input, battery condition, and output circuits for reliable system monitoring. Diagnostic Indicators: Door-mounted AC power LED and onboard diagnostics simplify installation and maintenance. The APS6A delivers the reliability and precision required for fire alarm notification expansion, emergency communication, and life safety power distribution.

Brand: Edwards Signaling · Category: Fire & Life Safety

Key features

• Filtered 24 VDC Output: Supplies regulated and supervised 24 VDC power for life safety equipment.
• Four NAC Outputs: Includes four Class B notification appliance circuits convertible to two Class A circuits.
• 6.5 Amp Capacity: Provides up to 6.5 amps total output with individual circuits rated for up to 3 amps.
• Integrated Battery Charger: Monitors and charges internal or external standby batteries automatically.
• Steel Lockable Cabinet: Rugged enclosure supports up to two 24 Ah batteries and protects internal components.
• Expansion Module Support: Compatible with AA-30, AA-50, SIGA-UIO, SIGA-REL, and optional communication modules.
• Supervised Operation: Continuously supervises AC input, battery condition, and output circuits for reliable system monitoring.
• Diagnostic Indicators: Door-mounted AC power LED and onboard diagnostics simplify installation and maintenance.

Specifications

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