Siemens
Siemens 6ES5254-4UB21 S5 CPU 254 Module
Siemens S5 CPU 254 Module
● In Stock
12-Mo Warranty
Same-Day Dispatch
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🎖 Veteran-Owned
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12-month warranty
All units tested
Same-day dispatch
Order by 2pm CST
Worldwide delivery
US, EU, Asia, Middle East
Veteran-owned
CAGE: 9NK75
Central processing unit for SIMATIC S5
Executes user programs
Manages I/O operations
Robust industrial design
S5-BASIC and S5-SCL support
Product description
The Siemens 6ES5254-4UB21 is a central processing unit (CPU) for the SIMATIC S5 series of programmable logic controllers. This module functions as the brain of the S5 system, executing user-defined programs and managing I/O operations.
This CPU is commonly found in various industrial automation applications, including manufacturing, process control, and building automation systems. Its robust design ensures reliable operation in demanding environments.
Stanlo Automation, a veteran-owned business, offers a wide selection of surplus Siemens automation parts. Sourcing your 6ES5254-4UB21 from us ensures quality and availability, backed by expert support.
Technical specifications
| Series | SIMATIC S5 |
| CPU Type | CPU 254 |
| Memory | 64 KB |
| Programming Language | S5-BASIC, S5-SCL |
Common applications
Manufacturing automation
Process control
Building automation
Machine control
Material handling
Compatible systems
SIMATIC S5 series
Also known as
Siemens S5 254 CPU
6ES5 254-4UB21
Replaces / compatible with
Replaced by newer SIMATIC S7 series CPUs. Compatible with other SIMATIC S5 series modules.
Technical note
Expert tip
Ensure proper EPROM programming and insertion for correct operation in your SIMATIC S5 system.What happens next?
1
Email confirmation
Immediate receipt acknowledgment sent to you
2
Account manager assigned
Confirms your part's spec and condition
3
Your quote delivered
Tailored to your specific requirements
Frequently asked questions
What is the memory capacity of the Siemens 6ES5254-4UB21 CPU?
The Siemens 6ES5254-4UB21 CPU for the SIMATIC S5 series has a memory capacity of 64 KB. This memory is used for program storage and data management.