Siemens 6ES7952-1AH00-0AA0 256KB RAM Memory Card for S7-400

Siemens 6ES7952-1AH00-0AA0 SIMATIC S7-400 256KB RAM Memory Card

Availability: 8 left in stock

The Siemens 6ES7952-1AH00-0AA0 is a dedicated RAM memory module designed for the SIMATIC S7-400 automation system. This long-version memory card...

SKU: 6ES7952-1AH00-0AA0

Manufacturer: Siemens
Product No.: 6ES7952-1AH00-0AA0
Product Type: Memory Module
Product Origin: Germany
Payment:T/T, Western Union
Weight: 100g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

The Siemens 6ES7952-1AH00-0AA0 is a dedicated RAM memory module designed for the SIMATIC S7-400 automation system. This long-version memory card provides 256 KB of volatile storage capacity, essential for the operation and program execution of S7-400 CPUs that require external memory expansion.

Features

Compatible with SIMATIC S7-400 programmable logic controller systems.
Provides 256 KB of RAM storage for user programs and data.
Long-version form factor for secure installation in CPU module slots.
Reliable data retention and memory management for industrial control environments.

Applications

This memory module is primarily utilized in industrial automation setups where S7-400 controllers require additional memory for complex logic, data logging, or operational parameter storage. It is a standard component for maintaining system functionality in manufacturing, process control, and infrastructure automation.

Technical Specifications

Order Code	6ES7952-1AH00-0AA0
Manufacturer	Siemens
Product Type	RAM Memory Module
Memory Capacity	256 KB
System Compatibility	SIMATIC S7-400
Form Factor	Long Version
Tariff Code	8523510000

Installation Guidelines

Ensure the CPU is powered down before inserting or removing the memory card to prevent data corruption or electrical damage.
Handle the card by its edges to avoid electrostatic discharge (ESD) damage to the integrated components.
Insert the module firmly into the designated memory slot on the S7-400 CPU until it is fully seated.
Verify that the module is correctly recognized by the hardware configuration within the STEP 7 or TIA Portal software environment after installation.

FAQ

Is this memory card compatible with S7-300 systems?
No, this specific part (6ES7952-1AH00-0AA0) is designed specifically for the SIMATIC S7-400 series.

Does this module require a battery backup?
As this is a RAM module, it is volatile. Ensure your S7-400 CPU is equipped with a functioning backup battery to maintain the data stored on this card when the system power is removed.

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.

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Maintenance Manager, USA

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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.

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Engineering Lead, Germany

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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.