Siemens

Siemens 6ES5955-3NC42 SIMATIC S5 Power Supply Module

SKU 6ES5955-3NC42

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

  • Product No.: 6ES5955-3NC42

  • Country of origin:Germany

  • Product Type: Power Supply Module

  • Barcode: 85389091

  • Payment: T/T, Western Union

  • Weight: 6320g

  • Dimensions: 45.40 x 33.50 x 11.10 cm

  • Shipping port: Xiamen

  • Warranty: 12 months

Description

The Siemens 6ES5955-3NC42 is a SIMATIC S5 power supply unit, specifically designed for use with ZG S5-135U/-155U and EG 183/185U modules. This robust power supply delivers a stable output of 24 V DC and 5 V at 18 A, ensuring consistent and reliable performance for demanding industrial environments. Its design supports continuous operation in various production lines and automated processes where minimal downtime is critical, aligning with Siemens' reputation for durable industrial electronics.

Features

  • Designed for SIMATIC S5 automation systems.
  • Compatible with ZG S5-135U/-155U and EG 183/185U modules.
  • Provides stable 24 V DC and 5 V DC output.
  • Delivers up to 18 A output current.
  • Robust construction for industrial applications.

Applications

The 6ES5955-3NC42 is suitable for deployment in industrial automation systems requiring a reliable power source for SIMATIC S5 modules, including:
  • Production lines
  • Automated manufacturing processes
  • Industrial control systems

Technical Specifications

Manufacturer Siemens
Brand Siemens
Range SIMATIC S5
Subrange S5-135/155
Product Type Power Supply Module
Input Supply Voltage 24V DC
Output Voltage 24V DC, 5V DC
Output Current 18 A (for 5V output)
Product Phase Obsolete
Predecessor 6ES5955-3NC41
Package Dimensions (Calculated) 45.40 x 33.50 x 11.10 cm
Shipping Weight 6.32 kg
Commodity Code 85389091
Export Control Regulations (ECCN) N

Installation Guidelines

Proper installation ensures optimal performance and safety for the 6ES5955-3NC42 power supply module.
  1. De-energize System: Before installation or removal, ensure all power to the system rack and connected modules is completely de-energized and locked out.
  2. Mounting: Securely mount the power supply unit within the designated rack slot or panel according to the system's mechanical specifications.
  3. Wiring: Connect the 24 V DC input power supply to the module's designated terminals, observing correct polarity. Ensure all connections are tight and secure to prevent intermittent operation or arcing.
  4. Grounding: Verify proper grounding of the module and the system rack to minimize electrical noise and ensure safety.
  5. Ventilation: Ensure adequate clearance around the module for proper airflow and heat dissipation to prevent overheating.
  6. Power-Up Sequence: After all connections are verified, re-energize the system following the manufacturer's recommended power-up procedure.

FAQ

What SIMATIC S5 systems is the 6ES5955-3NC42 compatible with?

This power supply module is specifically designed for ZG S5-135U/-155U and EG 183/185U modules within the SIMATIC S5 automation system.

What are the output voltage and current specifications?

The module provides a stable output of 24 V DC and 5 V DC, with an output current capability of 18 A for the 5V supply.

Is the 6ES5955-3NC42 still actively manufactured by Siemens?

No, the 6ES5955-3NC42 is listed as an obsolete product phase by the manufacturer.

What is the primary function of this module?

Its primary function is to provide stable DC power (24V and 5V) to SIMATIC S5 system components, ensuring their consistent operation in industrial environments.

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

Country of origin
Germany

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