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Siemens SIMATIC S5 6ES5955-3NF42 Power Supply

Name: Siemens 6ES5955-3NF42
Brand: Siemens
SKU: 6ES5955-3NF42
Availability: InStock

Siemens SIMATIC S5 6ES5955-3NF42 Power Supply for S5-135U/-155U.

● In Stock 12-Mo Warranty Same-Day Dispatch Ships Worldwide 🎖 Veteran-Owned

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ManufacturerSiemens

Part number6ES5955-3NF42

Series SIMATIC S5

Model 955

Output Voltage 24 V DC, 5 V DC

Current Rating 40 A (5V output)

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SIMATIC S5 Compatibility 24V DC & 5V DC Outputs 40A 5V Output Current Reliable Power Delivery Legacy Automation Component

Product description

The Siemens SIMATIC S5 6ES5955-3NF42 is a power supply unit designed for the SIMATIC S5 series of programmable logic controllers. It is compatible with the S5-135U, S5-155U, and EG 185U systems. This power supply provides outputs of 24V DC and 5V DC, with a significant current capacity of 40A for the 5V output.

This power supply is essential for operating the core logic and I/O modules of the SIMATIC S5 automation systems. It ensures stable and reliable power delivery required for continuous operation in industrial control applications. Industries that relied heavily on S5 systems include manufacturing, building automation, and process control before the advent of newer platforms.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, offers the Siemens 6ES5955-3NF42. Keep your legacy SIMATIC S5 systems operational with reliable power supply components sourced from Stanlo.

Technical specifications

Series	SIMATIC S5
Model	955
Output Voltage	24 V DC, 5 V DC
Current Rating	40 A (5V output)
Compatibility	S5-135U, S5-155U, EG 185U

Common applications

SIMATIC S5 PLC Systems

Industrial Control

Legacy Automation

Manufacturing Lines

Process Control

Compatible systems

Siemens SIMATIC S5-135U Siemens SIMATIC S5-155U Siemens EG 185U

Also known as

Siemens S5 Power Supply 6ES5955 6ES59553NF42

Replaces / compatible with

This is a primary power supply for the specified Siemens SIMATIC S5 systems. Not a direct replacement for other series without modification.

Technical note

Expert tip

When replacing this unit, ensure all connections are clean and tight, and verify that the system voltage requirements have not changed since the original installation.

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Frequently asked questions

What are the output specifications of the Siemens 6ES5955-3NF42 power supply?

The Siemens 6ES5955-3NF42 power supply for SIMATIC S5 systems provides both 24V DC and 5V DC outputs. It has a substantial current rating of 40A specifically for its 5V DC output.