• Siemens 6ES5955-3LC13
  • Siemens 6ES5955-3LC13
  • Siemens 6ES5955-3LC13
1 3

Siemens 6ES5955-3LC13 Simatic S5-135/155 Power Supply Module

Siemens 6ES5955-3LC13 Simatic S5-135/155 Power Supply Module

Description

The 6ES5 955-3LC13 (PS955) power supply module is engineered to provide stable, regulated electrical power for Siemens Simatic S5-135U and S5-155U central controller racks and expansion chassis. This robust unit...

26 people are viewing this right now

Availability: Low stock: 5 left

SKU: 6ES5955-3LC13
Vendor: Siemens
Category: Power Supply Module
Related Series:

Shipping & Returns

Reliable Worldwide Delivery

  • Carriers: Shipped via DHL, FedEx, UPS, or USPS.
  • Dispatch: Orders processed in 1-2 business days and dispatched within 3-5 business days.
  • Tracking: Full tracking details provided via email upon shipment.

30-Day Money-Back Guarantee

  • Guarantee: 30-day return window for in-stock, factory-sealed products.
  • Condition: Items must be unopened, unused, and in original packaging.
  • Authenticity: We guarantee 100% original and authentic hardware.

Need more details? Read our fullShipping PolicyandRefund Policy.

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.

Technical Support & Sourcing

  • Expert Assistance: Our technical team provides free consultation to help you verify compatibility for DCS and PLC systems.
  • Rare Part Sourcing: Specializing in obsolete and hard-to-find components from Allen-Bradley, Siemens, ABB, HIMA, and more.
  • Bulk Inquiries: Contact us at pambo@5gplc.com for volume pricing or customized project quotes.
View full product details

Description

The 6ES5 955-3LC13 (PS955) power supply module is engineered to provide stable, regulated electrical power for Siemens Simatic S5-135U and S5-155U central controller racks and expansion chassis. This robust unit is designed for demanding industrial environments, ensuring consistent operation of backplane electronics, logic processing modules, and I/O bus interfaces by converting AC mains into reliable DC power.

Features

  • Selectable input voltage range: 115 VAC or 220 VAC at 50 Hz.
  • Regulated output: 18 Amp at 5 VDC for backplane and logic power.
  • Integrated battery backup support using the CA-6EW1000-7AA lithium battery to maintain RAM and real-time clock data during power loss.
  • Comprehensive protection features including overvoltage protection, short-circuit current limiting, and galvanic isolation.
  • Front-panel LED diagnostics for monitoring AC input and DC rail status.
  • Passive cooling design with thermal cutoff protection for sustained reliability.

Applications

This power supply is a critical component for legacy Simatic S5 automation systems, commonly utilized in continuous process industries such as petroleum refineries, thermal power generation, metallurgical processing, and large-scale mining operations.

Technical Specifications

Model 6ES5 955-3LC13 (PS955)
Input Voltage 115 VAC / 220 VAC (selectable)
Input Frequency 50 Hz
Output Current 18 Amp @ 5 VDC
Operating Temperature 0 to 60 deg C
Storage Temperature -40 to 70 deg C
Relative Humidity 5% to 95% non-condensing

Installation Guidelines

  • Ensure the rack is fully powered down before inserting or removing the power supply module.
  • Verify the input voltage selector switch matches the local AC supply (115V or 220V) before energizing.
  • Ensure proper seating in the S5 rack backplane to maintain electrical contact and structural stability.
  • Maintain adequate clearance around the module to allow for passive cooling airflow.
  • Handle with care to prevent electrostatic discharge (ESD) damage to internal circuitry.
  • Regularly inspect the backup battery (CA-6EW1000-7AA) and replace according to the maintenance schedule to prevent data loss.

FAQ

Is this unit compatible with all S5 racks?

The 6ES5 955-3LC13 is specifically designed for the Simatic S5-135U and S5-155U series. Please verify your rack model and current requirements before installation.

What is the purpose of the battery compartment?

The front-accessible compartment holds a lithium battery to provide backup power for the CPU RAM and internal real-time clock, ensuring memory retention during main power outages.