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Siemens SIMATIC S5 905 Central Processing Unit

Name: Siemens 6ES5905-3RB21
Brand: Siemens
SKU: 6ES5905-3RB21
Availability: InStock

Siemens SIMATIC S5 905 Central Processing Unit (CPU).

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

In Stock — Ready to Ship

ManufacturerSiemens

Part number6ES5905-3RB21

Series SIMATIC S5

CPU Type 905 Central Processing Unit

Program Capacity 1000 elements

Operating Voltage 5V DC

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12-month warranty

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Veteran-owned

CAGE: 9NK75

1000 Program Elements STEP 5 Programmable 5V DC Operation 0-55°C Operating Temp Communication with I/O Modules

Product description

The Siemens SIMATIC S5 905 CPU (6ES5905-3RB21) is a central processing unit designed for the SIMATIC S5 series, specifically for use with the CC 6ES5 105-3RB... Central Controllers. This unit supports up to 1000 program elements, making it suitable for small to medium-scale automation tasks.

This CPU is engineered for reliable operation in industrial settings, managing logical sequences, timing, counting, and basic arithmetic operations. It ensures smooth process control for applications like small assembly lines and material handling, integrating seamlessly with Siemens' modular I/O systems.

Find the Siemens SIMATIC S5 905 CPU 6ES5905-3RB21 at Stanlo Automation. As a veteran-owned surplus parts distributor, we provide high-quality industrial automation components to keep your operations running efficiently.

Technical specifications

Series	SIMATIC S5
CPU Type	905 Central Processing Unit
Program Capacity	1000 elements
Operating Voltage	5V DC
Operating Temperature	0°C to +55°C

Common applications

Small Assembly Lines

Material Handling

Light Process Control

Industrial Automation

Machine Control

Compatible systems

SIMATIC S5

Also known as

SIMATIC S5 905 CPU Siemens 6ES5 905 CPU S5-905 Central Controller

Replaces / compatible with

This part is a central processing unit and does not typically replace other specific part numbers but serves as a core component in SIMATIC S5 systems.

Technical note

Expert tip

Ensure the correct STEP 5 software version is used for programming this CPU to avoid compatibility issues.

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Frequently asked questions

What is the program capacity of the Siemens SIMATIC S5 905 CPU 6ES5905-3RB21?

The Siemens SIMATIC S5 905 CPU 6ES5905-3RB21 has a program capacity of up to 1000 program elements, making it suitable for various small to medium-scale industrial automation tasks.