Siemens 6ES7952-1KP00-0AA0 Flash Memory Card 4MB | Replacement, Equivalent & Selection Guide
The Siemens 6ES7952-1KP00-0AA0 is a 4MB Flash Memory Card designed for the SIMATIC S7-400 programmable logic controller (PLC) series. It stores user programs, data blocks, and configuration data, enabling reliable non-volatile program retention even during power loss. This page provides a comprehensive selection guide, compatible replacement models, and sourcing information for industrial automation engineers and procurement teams.
Technical Specifications
- Part Number: 6ES7952-1KP00-0AA0
- Product Family: SIMATIC S7-400
- Memory Type: Flash EPROM (non-volatile)
- Memory Capacity: 4 MB
- Form Factor: Plug-in memory card (SIMATIC format)
- Compatible CPUs: S7-400 series (CPU 412, 414, 416, 417)
- Operating Temperature: 0°C to +60°C
- Storage Temperature: -40°C to +85°C
- Weight: approx. 40 g
- Manufacturer: Siemens AG, Germany
- MLFB / Order Number: 6ES7952-1KP00-0AA0
Compatible Replacement & Equivalent Models
The following models are functionally equivalent or directly compatible replacements for the 6ES7952-1KP00-0AA0. Always verify CPU compatibility before substitution:
- 6ES7952-1KP00-0AA0 — Original Siemens 4MB Flash Card (this item)
- 6ES7952-1KH00-0AA0 — Siemens 2MB Flash Card (lower capacity, same form factor)
- 6ES7952-1KT00-0AA0 — Siemens 8MB Flash Card (higher capacity upgrade)
- 6ES7952-1KY00-0AA0 — Siemens 64MB Flash Card (maximum capacity, S7-400 compatible)
- 6ES7952-1AS00-0AA0 — Siemens RAM Memory Card 256KB (different type, verify use case)
Note: Third-party compatible cards may exist but are not recommended for safety-critical applications. Always use genuine Siemens memory cards for certified installations.
Why Choose the Original Model
- Guaranteed Compatibility: Factory-tested and certified for all SIMATIC S7-400 CPUs.
- Data Integrity: Siemens Flash EPROM ensures reliable program retention over 10+ years without power.
- Certification Compliance: Meets CE, UL, and IEC 61131-2 standards required for industrial and safety-rated installations.
- Firmware Support: Fully supported by STEP 7 and TIA Portal programming environments.
- Warranty: Backed by Siemens manufacturer warranty and global service network.
Typical Applications
- Program storage and backup for SIMATIC S7-400 PLCs in continuous production lines
- Rapid CPU replacement and program restoration in manufacturing plants
- Data logging and recipe storage in process automation systems
- Redundant system configurations requiring fast program reload
- Automotive, chemical, oil & gas, and power generation industries
System Compatibility
- Compatible PLC Series: SIMATIC S7-400 (all generations)
- Compatible CPUs: CPU 412-1, 412-2, 414-2, 414-3, 416-2, 416-3, 417-4 and variants
- Programming Software: STEP 7 V5.x, TIA Portal V13 and above
- Not Compatible With: S7-300, S7-1200, S7-1500 series (different card format)
Selection Guide
Use the table below to select the correct memory card capacity for your S7-400 application:
- Up to 2MB program size → 6ES7952-1KH00-0AA0 (2MB)
- Up to 4MB program size → 6ES7952-1KP00-0AA0 (4MB) ← This Item
- Up to 8MB program size → 6ES7952-1KT00-0AA0 (8MB)
- Large data / recipe storage (>8MB) → 6ES7952-1KY00-0AA0 (64MB)
- Temporary RAM storage only → 6ES7952-1AS00-0AA0 (RAM Card)
Tip: Check your CPU’s maximum addressable memory in the STEP 7 hardware catalog before ordering.
Quality Assurance & Sourcing
- All units sourced from authorized Siemens distribution channels or verified surplus with full traceability.
- Each card undergoes functional testing prior to shipment.
- Anti-static packaging and secure shipping to prevent ESD damage in transit.
- Certificate of conformity available upon request for regulated industries.
- Konmask.com specializes in industrial automation components with a focus on PLC, DCS, and control system hardware.
How to Order
- Step 1: Confirm your S7-400 CPU model and required memory capacity.
- Step 2: Add 6ES7952-1KP00-0AA0 to cart or contact us for bulk/project pricing.
- Step 3: Provide your shipping address — we ship worldwide with DHL, FedEx, and UPS.
- Step 4: Receive order confirmation with tracking number within 24 hours.
For urgent requirements or large quantity orders, contact our technical sales team directly.
Replacement & Compatibility FAQ
Q: Can I use a 6ES7952-1KT00-0AA0 (8MB) as a direct replacement for the 6ES7952-1KP00-0AA0 (4MB)?
A: Yes, in most cases. The 8MB card is backward compatible with all S7-400 CPUs that support the 4MB card. Your existing program will load normally; the extra capacity is simply unused.
Q: Is the 6ES7952-1KP00-0AA0 compatible with S7-300 CPUs?
A: No. The S7-300 series uses a different memory card format (e.g., 6ES7951-xxxx series MMC cards). These are not interchangeable.
Q: Can I use a third-party memory card as a replacement?
A: Third-party cards may function in non-critical applications, but Siemens does not certify them. For safety-rated or certified systems, always use genuine Siemens memory cards.
Q: How do I transfer my program to a new memory card?
A: Use STEP 7 or TIA Portal to download the program from the CPU to the new card, or use the CPU’s built-in copy function if supported. Refer to your CPU manual for the exact procedure.
Q: What is the lead time for the 6ES7952-1KP00-0AA0?
A: In-stock items ship within 1–3 business days. Contact us for current stock status and expedited options.
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