• Siemens 6ES5955-5LB11
  • Siemens 6ES5955-5LB11
  • Siemens 6ES5955-5LB11
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Siemens 6ES5955-5LB11 Simatic S5 Power Supply Module

Siemens 6ES5955-5LB11 Simatic S5 Power Supply Module

Description

The Siemens 6ES5955-5LB11 is a robust power supply module designed specifically for the Simatic S5-135U and S5-155U programmable logic controller systems. This unit provides stable, regulated DC power to the...

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Availability: Low stock: 7 left

SKU: 6ES5955-5LB11
Vendor: Siemens
Category: PLC Power Supply Module
Related Series:

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Authenticity & Warranty

  • Genuine Guarantee: We supply only 100% original, brand-new, and factory-sealed industrial automation parts.
  • Full Coverage: Every component is backed by a 12-month comprehensive warranty from the date of purchase.
  • Traceability: All products come with original factory documentation and accessories for full industrial compliance.

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Description

The Siemens 6ES5955-5LB11 is a robust power supply module designed specifically for the Simatic S5-135U and S5-155U programmable logic controller systems. This unit provides stable, regulated DC power to the system backplane, ensuring consistent operation in demanding industrial environments. By maintaining precise voltage levels, it supports the reliability of central processing units and I/O modules, helping to prevent unplanned downtime in critical applications such as automotive manufacturing, petrochemical processing, and infrastructure management.

Features

  • Designed for seamless integration with S5-135U and S5-155U rack systems.
  • Selectable input voltage range for flexibility in global power environments.
  • Integrated protection circuitry against short-circuits and overvoltage conditions.
  • Front-panel LED indicators for immediate monitoring of input power and output status.
  • High-capacity filtering to mitigate grid-borne electrical noise and voltage transients.
  • Natural convection cooling design for maintenance-free operation.

Technical Specifications

Model 6ES5 955-5LB11
Input Voltage 115 VAC / 230 VAC (selectable)
Input Frequency 47 to 63 Hz
Output Voltage 5 VDC and 24 VDC
Output Current 10 A at 5 VDC
Operating Temperature 0 to 60 deg C
Storage Temperature -40 to 70 deg C
Cooling Natural convection

Installation Guidelines

  • Ensure the PLC rack is powered down before installing or removing the power supply module.
  • Verify that the input voltage selection switch matches the local supply voltage before applying power.
  • Mount the module securely in the designated power supply slot of the S5 rack to ensure proper backplane connection.
  • Maintain adequate clearance around the module to allow for natural convection cooling; do not obstruct ventilation paths.
  • Use appropriate ESD precautions when handling the module to prevent damage to internal electronic components.
  • Ensure all wiring is routed away from high-EMI sources to maintain signal and power integrity.

FAQ

What systems is the 6ES5955-5LB11 compatible with?

This power supply is specifically engineered for use with the Siemens Simatic S5-135U and S5-155U PLC platforms.

How is the input voltage configured?

The module features a selectable input switch allowing it to operate on either 115 VAC or 230 VAC power sources.

What protection features are included?

The unit includes built-in short-circuit and overvoltage protection to safeguard the connected CPU and I/O modules from electrical faults.