Siemens 6ES5955-3LF12 Power Supply Unit for SIMATIC S5 955

The Siemens 6ES5955-3LF12 is a high-performance power supply unit designed for the SIMATIC S5 955 series. This power supply unit is essential for providing stable and reliable power to the CC 135U/150U/155E/EU 185U controllers. It operates efficiently with a voltage range of 115/230 VAC for input and outputs a steady 5 VDC, ensuring optimal functionality. With a current rating of 40 AMP, this unit can support demanding industrial applications.

Key Features of the Siemens 6ES5955-3LF12

Model: Siemens 6ES5955-3LF12
Type: Power Supply Unit
Product Line: SIMATIC S5 955
Manufacturer: Siemens
Application: Power Supply for CC 135U/150U/155E/EU 185U
Input Voltage: 115/230 VAC
Output Voltage: 5 VDC
Current Rating: 40 AMP

Technical Specifications

Specification	Details
Dimensions	180 mm x 120 mm x 90 mm
Weight	2.8 kg
Input Voltage	115/230 VAC
Output Voltage	5 VDC
Maximum Current	40 AMP
Power Factor	>0.95
Mounting Type	Rack-Mountable
Cooling Method	Natural Air Cooling
Operating Temperature Range	0°C to 60°C
Storage Temperature Range	-25°C to 85°C
Operating Humidity Range	5% to 95% (non-condensing)
Protection Class	IP20

Why Choose Siemens 6ES5955-3LF12?

The Siemens 6ES5955-3LF12 provides a reliable power source for your SIMATIC S5 955 system. This unit offers several important benefits:

Versatile Input Voltage: It supports both 115/230 VAC inputs, making it flexible for various industrial settings.
Stable Output: The 5 VDC output ensures that connected components receive a steady, reliable power supply.
High Current Capacity: With a 40 AMP current rating, it can easily handle high power demands, making it ideal for larger systems.
Efficient Cooling: The natural air cooling system ensures the unit operates efficiently, even in higher temperature environments.
Compact and Robust Design: With a compact footprint and IP20 protection class, it is built to withstand industrial conditions.

Product Overview

The Siemens 6ES5955-3LF12 power supply unit is designed to meet the needs of SIMATIC S5 955 controllers, offering essential power input and output functions. It features 115/230 VAC input and provides 5 VDC output with a maximum current of 40 AMP, supporting demanding automation tasks. Whether you are working with CC 135U, 150U, 155E, or EU 185U controllers, this power supply ensures that your system receives the reliable power it needs for continuous operation.

With its efficient natural air cooling system, the Siemens 6ES5955-3LF12 maintains optimal performance even in harsh conditions. Additionally, the compact design and reliable IP20 protection class make it a robust choice for industrial applications.

How to Install Siemens 6ES5955-3LF12

Installation of the Siemens 6ES5955-3LF12 power supply unit is straightforward. Mount it securely in your system rack, ensuring that it has access to adequate ventilation for natural air cooling. Once installed, connect the appropriate power sources to the unit, ensuring it matches the 115/230 VAC input voltage. The unit will then output 5 VDC at 40 AMP, powering your SIMATIC S5 955 system efficiently.

The Siemens 6ES5955-3LF12 is designed for easy integration and quick setup. Its robust construction and flexibility make it a reliable solution for demanding industrial environments.

Conclusion

The Siemens 6ES5955-3LF12 power supply unit is an essential component for powering your SIMATIC S5 955 system. It provides a reliable, steady power output of 5 VDC with a high current capacity of 40 AMP. Whether you’re working with CC 135U, 150U, 155E, or EU 185U controllers, this unit offers excellent performance. Its IP20 protection, natural air cooling, and flexible voltage input make it a versatile solution for industrial automation needs.