1 of 5

Siemens 6ES5955-3LC42 SIMATIC S5 Power Supply

Siemens 6ES5955-3LC42 SIMATIC S5 Power Supply

Only 4 item(s) left in stock
  • Manufacturer: Siemens

  • Product No.: 6ES5955-3LC42

  • Country of origin:Germany

  • Product Type: Power Supply

  • Barcode: 85044095

  • Payment: T/T, Western Union

  • Weight: 6220g

  • Dimensions: 46.10 x 34.20 x 11.30 cm

  • Shipping port: Xiamen

  • Warranty: 12 months

Quantity
View full details

Description

The Siemens 6ES5955-3LC42 is a SIMATIC S5 power supply unit, engineered for demanding industrial automation environments. This professional-grade unit provides a stable 5 V DC output at 18A and is compatible with both 230 V AC and 120 V AC input voltages. It is specifically designed for use with SIMATIC S5 systems, including models such as the S5-135U, S5-155U, and EG 183/185U, ensuring reliable power delivery for continuous operation on the production line.

Features

  • Provides 5 V DC output at 18A.
  • Compatible with 120 V AC and 230 V AC input voltages.
  • Designed for SIMATIC S5-135U, S5-155U, and EG 183/185U systems.
  • Robust construction suitable for industrial applications.

Applications

  • Powering SIMATIC S5 Programmable Logic Controller (PLC) systems.
  • Industrial automation setups requiring stable 5 V DC power.
  • Integration into existing SIMATIC S5-135U, S5-155U, or EG 183/185U installations.
  • Production lines and manufacturing facilities.

Technical Specifications

Parameter Value
Manufacturer Siemens
Brand Siemens
Series SIMATIC S5
Model 6ES5955-3LC42
Product Type Power Supply
Input Voltage 120 V AC / 230 V AC
Output Voltage 5 V DC
Output Current 18A
Product Phase Obsolete
Predecessor 6ES5955-3LC41
Package Dimensions (Calculated) 46.10 x 34.20 x 11.30 cm
Shipping Weight 6.22 kg
Commodity Code 85044095
Export Control Regulations (ECCN) N

Installation Guidelines

  1. De-energize System: Before installation, ensure all power to the SIMATIC S5 rack and associated equipment is completely disconnected and locked out to prevent electrical hazards.
  2. Mounting: Securely mount the power supply unit within the designated slot or area in the SIMATIC S5 rack or enclosure. Ensure proper ventilation space around the unit.
  3. Input Power Connection: Connect the appropriate AC input voltage (120 V AC or 230 V AC) to the designated terminals. Verify correct polarity and secure all connections.
  4. Output Power Connection: Connect the 5 V DC output to the SIMATIC S5 backplane or modules as per the system wiring diagram. Ensure proper connection to the 5 V and ground terminals.
  5. Grounding: Ensure the power supply unit and the SIMATIC S5 system are properly grounded to a common earth ground to minimize electrical noise and ensure safety.
  6. Cable Routing: Route power cables away from signal and communication cables to prevent interference. Use appropriate cable management techniques.
  7. Verification: After installation, double-check all connections for security and correctness before re-energizing the system.

What SIMATIC S5 systems is the 6ES5955-3LC42 compatible with?

This power supply is designed for use with SIMATIC S5-135U, S5-155U, and EG 183/185U systems.

What are the input voltage requirements for this power supply?

The unit is compatible with both 120 V AC and 230 V AC input voltages.

What is the output specification of the 6ES5955-3LC42?

It provides a stable 5 V DC output at 18A.

Is the 6ES5955-3LC42 still in active production?

No, the product phase for this power supply is listed as Obsolete.

What was the predecessor model to the 6ES5955-3LC42?

The predecessor model for this power supply was the 6ES5955-3LC41.

Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
Germany

Recently Viewed Products

Technical knowledge

Boolean Logic in PLC Programming: Understanding FBD Logic Gates

Boolean logic is the foundation of every PLC program. From simple machine controls to complex industrial automation systems, logic gates determine how controllers respond to changing inputs and...

Deep-Dive Guide to Industrial Firewalls and OT Network Segmentation

Industrial firewalls play a critical role in OT cybersecurity, protecting PLC, DCS, and SCADA networks through segmentation, ingress/egress control, and IDS/IPS integration aligned with IEC 62443...

Guide to Robotic Grippers: From Delicate Handling to Heavy-Duty Automation

Modern robotic grippers are evolving beyond traditional mechanical jaws. From gecko-inspired adhesive systems and soft food-grade grippers to AI-powered warehouse tools, advanced gripping...

Throwback: How Early Electric Motors Changed Underground Mining

From rope-driven DC compressors to battery-powered mine carts, early mining operations marked a turning point in industrial electrification. This article explores how electric motors transformed...

Factory I/O: A Modern PLC Simulation Tool for Industrial Automation Training

Factory I/O is transforming PLC education by delivering immersive 3D industrial simulations for students, engineers, and maintenance teams. The platform bridges the gap between theory and real-world...

Programming Single-Axis Motion Cycles on a CMZ Servo Drive

This tutorial examines how onboard PLC functionality inside a CMZ SBD servo drive can execute standalone motion programs, including homing logic, position control, and cyclic axis movement without an...