Siemens 6ES5374-1KH21 SIMATIC S5 Flash Memory Card 256KB

Availability: 0 left in stock

DescriptionThe Siemens 6ES5374-1KH21 is a Flash-EPROM memory card designed for use with the SIMATIC S5 programmable logic controller (PLC) systems....

SKU: 6ES5374-1KH21

Manufacturer: Siemens
Product No.: 6ES5374-1KH21
Product Type: PLC Memory Module
Product Origin: Germany
Payment:T/T, Western Union
Weight: 50g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Description

The Siemens 6ES5374-1KH21 is a Flash-EPROM memory card designed for use with the SIMATIC S5 programmable logic controller (PLC) systems. This memory module provides 256 KB of non-volatile storage capacity, allowing for the reliable retention of user programs and data configurations within the S5 environment. Featuring a short design, this card is specifically engineered for compatibility with S5 CPU modules requiring external memory expansion or program storage.

Features

Memory Type: Flash-EPROM
Capacity: 256 KB
Voltage: 5V DC
Design: Short form factor for S5 series compatibility
Non-volatile storage for program and data blocks

Technical Specifications

Model	6ES5374-1KH21
Manufacturer	Siemens
Product Type	Memory Card
Memory Capacity	256 KB
Technology	Flash-EPROM
Voltage	5V
System Compatibility	SIMATIC S5
Status	Discontinued (Since 01.10.2006)

Installation Guidelines

Ensure the PLC power is switched off before inserting or removing the memory card to prevent electrical damage or data corruption.
Handle the module by the edges; avoid touching the gold-plated contact pins to prevent oxidation or contamination.
Ensure the card is fully seated in the designated memory slot of the S5 CPU or interface module.
Store in an anti-static environment when not in use to protect the internal Flash-EPROM components.
Verify that the S5 CPU firmware version supports the specific memory capacity of this module.

FAQ

Is this memory card still available from the manufacturer?

No, the 6ES5374-1KH21 was officially discontinued by Siemens on October 1, 2006. It is currently available only through secondary market channels or as refurbished spare parts.

What is the primary use of this module?

This module serves as an external program memory storage device for SIMATIC S5 PLCs, allowing users to load, save, and execute control programs directly from the card.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.