Title: SIEMENS 6ES5 955-3NC42 SIMATIC S5 Power Supply Unit - Robust & Reliable Industrial Automation Solution

Product Overview:
The SIEMENS 6ES5 955-3NC42 is a high-performance power supply unit meticulously engineered for the renowned SIEMENS SIMATIC S5 series of Programmable Logic Controllers (PLCs). As a critical component in industrial automation systems, this unit ensures a stable and reliable power supply to your S5 CPU and peripheral modules, guaranteeing uninterrupted operation and optimal performance in demanding industrial environments. Its robust design and advanced protection features make it an indispensable asset for maintaining the integrity and efficiency of your control processes. Ideal for upgrading, replacing, or building new SIMATIC S5 installations, the 6ES5 955-3NC42 stands as a testament to Siemens' commitment to quality and longevity in industrial electronics.

Key Features & Benefits:

 Dedicated Power Supply: Specifically designed to provide stable and efficient power to SIEMENS SIMATIC S5 PLCs, including S5-115U, S5-135U, and S5-155U series.
 High Reliability: Engineered for continuous operation in harsh industrial conditions, ensuring maximum uptime for your automation processes.
 Stable Output Voltage: Delivers a consistent 24V DC output, crucial for the precise and reliable functioning of sensitive PLC components.
 Overload and Short-Circuit Protection: Integrated safety features protect both the power supply unit and connected equipment from electrical faults, enhancing system longevity.
 Efficient Power Conversion: Minimizes energy loss, contributing to lower operational costs and reduced heat generation within control cabinets.
 Compact and Robust Design: Space-saving form factor allows for efficient cabinet layout, while its durable construction withstands vibrations and temperature fluctuations.
 Easy Installation and Maintenance: Designed for straightforward integration into existing SIMATIC S5 racks, simplifying setup and reducing downtime during servicing.
 Long Operational Life: Built with high-quality components to ensure extended service life, providing a reliable foundation for your industrial control systems for years to come.
 Essential for System Integrity: Guarantees the continuous and stable operation of critical automation functions, preventing costly production interruptions.

Applications:

The SIEMENS 6ES5 955-3NC42 power supply unit is widely utilized across various industrial sectors where SIEMENS SIMATIC S5 PLCs are deployed, including:
 Manufacturing and Production Lines
 Process Control Systems (e.g., chemical, pharmaceutical, food & beverage)
 Machine Building and OEM Applications
 Automotive Industry Automation
 Energy Management and Power Distribution
 Water and Wastewater Treatment Plants
 Building Automation and HVAC Systems
 Material Handling and Conveyor Systems
 Any industrial application requiring a dependable power source for SIMATIC S5 controllers.

Technical Specifications:

 Part Number: 6ES5 955-3NC42
 Part Number (no special characters): 6ES59553NC42
 Product Type: Power Supply Unit (PSU)
 Series: SIEMENS SIMATIC S5
 Input Voltage: 120V AC / 230V AC (Auto-ranging or selectable)
 Input Frequency: 50 Hz / 60 Hz
 Output Voltage: 24V DC
 Output Current: 10 A
 Rated Power: 240 W
 Efficiency: High
 Protection: Overload, Short-circuit
 Mounting Type: Rack mounting (for SIMATIC S5 racks)
 Operating Temperature: 0°C to +60°C
 Storage Temperature: -25°C to +70°C
 Relative Humidity: 5% to 95% (non-condensing)
 Dimensions (Approximate): 100 mm (W) x 290 mm (H) x 210 mm (D)
 Weight: 1.8 kg
 Certifications: CE, UL (where applicable)