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Siemens SIMATIC S5/SINUMERIK 921 Central Processing Unit

Name: Siemens 6ES5921-3WB13
Brand: Siemens
SKU: 6ES5921-3WB13
Availability: InStock

Siemens SIMATIC S5/SINUMERIK CPU 921 with 8 I/O slots.

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

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ManufacturerSiemens

Part number6ES5921-3WB13

Model CPU 921

System SIMATIC S5 / SINUMERIK 3

I/O Slots 8

For ZG 130WB and integrated PLC 130WB

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12-month warranty

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Veteran-owned

CAGE: 9NK75

8 I/O slots for expansion Integrated PLC functionality Designed for SIMATIC S5 / SINUMERIK 3 Reliable central processing unit Supports ZG 130WB

Product description

The Siemens 6ES5921-3WB13 is a Central Processing Unit (CPU) designed for the SIMATIC S5 and SINUMERIK 3 series. It features 8 slots for I/O modules and functions as an integrated PLC, specifically for the ZG 130WB and the integrated PLC 130WB system. This CPU is a core component for logic control and automation tasks within compatible Siemens systems.

This CPU is suitable for legacy automation systems and machine control applications where SIMATIC S5 or SINUMERIK 3 platforms are still in operation. It serves the needs of industries that rely on established and robust control hardware.

Stanlo Automation, a veteran-owned surplus distributor, provides the Siemens 6ES5921-3WB13. Find essential components for your existing industrial automation infrastructure and ensure continued operational efficiency.

Technical specifications

Model	CPU 921
System	SIMATIC S5 / SINUMERIK 3
I/O Slots	8
For	ZG 130WB and integrated PLC 130WB
Type	Central Processing Unit

Common applications

Legacy Automation Systems

Machine Control

Industrial Automation

SIMATIC S5 applications

SINUMERIK 3 applications

Compatible systems

Siemens SIMATIC S5 PLCs Siemens SINUMERIK 3 Systems ZG 130WB Control Systems

Also known as

Siemens SIMATIC S5 CPU 921 Siemens SINUMERIK 3 CPU Siemens 6ES5 921

Replaces / compatible with

This CPU is a component of the SIMATIC S5 and SINUMERIK 3 systems. For replacements or upgrades, consult Siemens documentation for compatible S5 CPUs.

Technical note

Expert tip

When replacing a Siemens 6ES5921-3WB13 CPU, ensure that any existing I/O modules are compatible with the new unit and that the programming software is also compatible with the S5 or Sinumerik 3 system.

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Frequently asked questions

What Siemens control systems is the 6ES5921-3WB13 CPU compatible with?

The Siemens 6ES5921-3WB13 CPU is designed for the SIMATIC S5 and SINUMERIK 3 series control systems. It is specifically intended for use with the ZG 130WB and the integrated PLC 130WB.