PS-35 | Siemens System 3 Power Supply 500-884950 for CP-35 Fire Alarm Control

Siemens · Fire & Life Safety

Description  The Siemens PS-35 Power Supply (500-884950) is a robust step-down transformer and bridge rectifier assembly engineered for use with Siemens System 3 fire alarm control panels, specifically the CP-35 model. It provides regulated DC power to support notification appliance circuits (NACs) and auxiliary devices within life safety systems. Designed for dependable performance, the PS-35 ensures stable power distribution to enhance the reliability of connected fire alarm components.     Technical Specifications  Condition New/Never Used Surplus Brand Siemens Category Fire Safety Part Number PS-35 Subcategory Power Supplies Model Number 500-884950 System Compatibility Siemens System 3, CP-35 Control Panel Function Step-down transformer and bridge rectifier Input Voltage 120 VAC nominal Output Voltage Regulated DC for NAC and auxiliary devices Mounting Type Panel-mounted Protection Features Thermal and overload protection Construction Metal enclosure, industrial-grade components Certifications UL Listed for fire alarm applications Production Status Discontinued Application Fire alarm and life safety systems Unit of Measurement Each (EA) Weight 13.54 lbs     Information About PS-35 The PS-35 is a Siemens System 3-series power supply module developed to provide additional DC current capacity for fire alarm and notification systems. It is typically installed alongside the CP-35 control panel, where it converts AC input to regulated DC output for consistent and safe operation of alarm devices. The unit integrates both a step-down transformer and a bridge rectifier, allowing efficient voltage conversion and rectification in one enclosure. Built for long-term durability and reliability, the PS-35 meets the stringent requirements of commercial and institutional fire protection systems. Key Features: Integrated Power Conversion: Combines a transformer and rectifier to supply DC voltage for fire alarm circuits. System Compatibility: Designed specifically for Siemens System 3 panels, including CP-35. Stable DC Output: Ensures reliable operation of notification appliances and auxiliary modules. Rugged Construction: Built with industrial-grade components for continuous-duty applications. Thermal Protection: Safeguards internal components from overheating under high load. Mounting Flexibility: Compact and secure mounting within System 3 enclosures. Service Friendly: Simple terminal layout for efficient installation and maintenance. UL Compliance: Meets safety and performance standards for fire system power equipment. The PS-35 delivers the reliability and precision required for continuous power support in critical fire alarm and life safety systems.

Brand: Siemens · Category: Fire & Life Safety

Key features

• Integrated Power Conversion: Combines a transformer and rectifier to supply DC voltage for fire alarm circuits.
• System Compatibility: Designed specifically for Siemens System 3 panels, including CP-35.
• Stable DC Output: Ensures reliable operation of notification appliances and auxiliary modules.
• Rugged Construction: Built with industrial-grade components for continuous-duty applications.
• Thermal Protection: Safeguards internal components from overheating under high load.
• Mounting Flexibility: Compact and secure mounting within System 3 enclosures.
• Service Friendly: Simple terminal layout for efficient installation and maintenance.
• UL Compliance: Meets safety and performance standards for fire system power equipment.

Specifications

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