Siemens 6ES5955-5LB11 Simatic S5 Power Supply Module

Siemens 6ES5955-5LB11 Simatic S5 Power Supply Module

Availability: 3 left in stock

DescriptionThe Siemens 6ES5955-5LB11 is a robust power supply unit specifically designed for the Simatic S5-135U and S5-155U programmable logic controller...

SKU: 6ES5955-5LB11

Manufacturer: Siemens
Product No.: 6ES5955-5LB11
Product Type: PLC Power Supply
Product Origin: Germany
Payment:T/T, Western Union
Weight: 3100g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Description

The Siemens 6ES5955-5LB11 is a robust power supply unit specifically designed for the Simatic S5-135U and S5-155U programmable logic controller series. This module serves as the primary energy source for the system backplane, ensuring stable DC voltage distribution to CPUs and I/O modules in demanding industrial environments. By providing consistent power regulation, this unit helps maintain system integrity in critical applications such as chemical processing, power generation, and large-scale manufacturing automation.

Features

Designed for seamless integration with Siemens Simatic S5-135U and S5-155U rack systems.
Selectable input voltage range (115 VAC or 230 VAC) for flexible installation across global power grids.
Integrated protection circuitry guarding against overvoltage and short-circuit conditions to prevent damage to downstream components.
Front-mounted diagnostic LEDs for immediate visual monitoring of power status and output health.
Engineered for reliable operation in high-noise electrical environments typical of heavy industrial facilities.

Technical Specifications

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

Installation Guidelines

Ensure the rack power is disconnected before installing or removing the module to prevent electrical shock or damage to the backplane pins.
Verify that the voltage selection switch is set correctly for your local supply (115V or 230V) before applying power.
Maintain adequate clearance around the module to allow for natural convection cooling; avoid mounting in areas with excessive dust or high humidity.
Use appropriate industrial-grade wiring for input connections and ensure all terminal screws are tightened to the specified torque to prevent loose connections.
Always handle sensitive electronic modules using proper ESD (Electrostatic Discharge) precautions to protect internal circuitry.

FAQ

Is the 6ES5955-5LB11 compatible with S5-115U systems?
This specific power supply is designed for the S5-135U and S5-155U platforms. Please check your specific rack hardware requirements before installation.

Does this module require external cooling fans?
No, the unit is designed for natural convection cooling. Ensure the installation environment allows for unobstructed airflow around the module vents.

How do I change the input voltage?
The module features a selectable input voltage setting. Please refer to the physical switch or jumper configuration on the unit, ensuring the input matches your facility's power supply before activation.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.

Lucas Müller

Operations Director, Germany