Siemens

Siemens Simatic S5 6ES5946-3UA23 Standard CPUs

SKU 6ES5946-3UA23

In stock
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: Siemens

  • Product No.: 6ES5946-3UA23

  • Country of origin:Germany

  • Product Type: Standard CPUs

  • Barcode: 85389091

  • Payment: T/T, Western Union

  • Weight: 1100g

  • Dimensions: 32.50cm x 34.00cm x 9.00cm

  • Shipping port: Xiamen

  • Warranty: 12 months

Description

The 6ES5946-3UA23 is a SIMATIC S5 CPU 946 central processing unit designed for S5-155U programmable logic controller (PLC) systems within the Simatic S5 product range. Manufactured by Siemens, this high-performance processor is engineered to manage complex control logic, coordinate system tasks, and execute automation programs in large-scale industrial environments.

The 6ES5946-3UA23 provides dependable computing power required for heavy-duty manufacturing and process automation infrastructure. The unit features physical dimensions of 32.50 x 34.00 x 9.00 cm and weighs 1.10 kg. As an obsolete lifecycle product, it is utilized primarily for legacy system maintenance, direct hardware replacement, and operational continuity in established S5 automation installations.

Features

  • SIMATIC S5 CPU 946 central processing unit architecture
  • Compatibility with Siemens S5-155U programmable logic controllers
  • Robust processor design engineered for complex industrial control tasks
  • Rack-mountable form factor optimized for standard S5 subracks
  • Designed for legacy system maintenance and hardware replacement support

Applications

  • Large-scale industrial process automation systems
  • S5-155U PLC control panel modernization and repair
  • Heavy manufacturing production line monitoring and control
  • Legacy Siemens Simatic S5 network infrastructure maintenance

Technical Specifications

Technical Parameter Specification
Manufacturer Siemens
Brand Siemens
Range Simatic S5
Subrange S5-135/155
Type of product Standard CPUs
Product Phase Obsolete
Dimensions 32.50 x 34.00 x 9.00 cm
Weight 1.10 kg
Commodity Code 85389091
Export Control Regulations (ECCN) N

Installation Guidelines

  • Ensure all rack power supplies are completely turned off before inserting or removing the 6ES5946-3UA23 CPU module from the S5 subrack.
  • Align the module carefully with the designated CPU slot on the S5-155U backplane and press evenly to engage all edge connectors.
  • Secure any locking mechanisms or retaining screws provided on the front panel to prevent loosening from industrial vibration.
  • Verify proper system configuration, memory module placement, and status indicator LEDs before initiating power-up and running control programs.

FAQ

What is the primary function of the 6ES5946-3UA23 module?

It functions as a SIMATIC S5 CPU 946 central processing unit designed to execute control programs for PLC systems.

Which specific PLC controller series is this CPU compatible with?

It is designed for use in Siemens S5-155U programmable logic controllers.

What are the physical dimensions and weight of the CPU unit?

The physical dimensions are 32.50 x 34.00 x 9.00 cm with an operating weight of 1.10 kg.

What is the current product lifecycle status of this processor?

It is classified as an obsolete product.

View all FAQs →

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Shipping & Returns

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.

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 technical warranty.
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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

Color pattern
Black
Country of origin
Germany
Power source
AC-powered

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