Siemens 500-884857 BC-35 Battery Charger Transfer Module System 3

Description The Siemens 500-884857 is a BC-35 battery charger and transfer switch module designed for Siemens System 3 fire alarm control panels. It maintains the standby battery during normal AC operation and automatically transfers the fire alarm panel to 24 VDC emergency battery power when the primary AC supply fails. Technical Specifications Condition New/Never Used Surplus Brand Siemens Category Fire Alarm Part Number 500-884857 Subcategory Battery Chargers & Transfer Modules Product Type Battery Charger / Transfer Switch Module Model BC-35 System Compatibility Siemens System 3 Application Fire Alarm Control Panels Backup Voltage 24 VDC Primary Function Battery Charging and Automatic Power Transfer Backup Function Automatic transfer to battery power during AC failure Module Configuration Two-space module Compatible Power Supply PS-35 Application Type Emergency Fire Alarm Backup Power Weight 3.00 lb. Information About 500-884857 The 500-884857 is the Siemens BC-35 module used within the System 3 fire alarm power subsystem. It combines battery charging and automatic power-transfer functions in a two-space module configuration for compatible System 3 panels. The unit operates with the PS-35 power supply to maintain continuous power availability during normal and backup operating conditions. Its primary application is providing automatic 24 VDC emergency backup power to compatible Siemens System 3 fire alarm control panels. Key Features: Battery Charger: Maintains the connected standby battery at full charge during normal AC power operation. Transfer Switch: Automatically transfers the fire alarm panel to battery backup when AC power is interrupted. 24 VDC Backup: Provides automatic emergency backup power at 24 VDC for compatible System 3 equipment. System 3 Compatibility: Designed specifically for Siemens System 3 fire alarm control panels. Two-Space Module: Configured as a two-space module for installation within the System 3 panel platform. PS-35 Integration: Operates in conjunction with the PS-35 power supply within the System 3 power subsystem. Emergency Power: Supports continued fire alarm system operation during primary power failures. The 500-884857 delivers the reliability and precision required for fire alarm power management and emergency backup applications.