6ES7952-1AH00-0AA0 Siemens SIMATIC S7, RAM Memory Card for S7-400, long design, 256 Kbyte

The 6ES7952-1AH00-0AA0 is a genuine Siemens SIMATIC RAM memory card in the long hardware design. Offering 256 KB of volatile read/write memory, it snaps directly into the front slot of any S7-400 CPU to increase load memory capacity for larger user programs, recipes and data blocks. Ideal for commissioning, testing or small to medium-sized applications that do not require permanent retention without battery backup.

• Part number (MLFB): 6ES7952-1AH00-0AA0
• Product type: SIMATIC S7 RAM memory card, long design
• Memory capacity: 256 KB (262 144 bytes)
• Memory technology: Volatile SRAM
• Data retention: Requires backup battery in CPU
• Compatibility: All SIMATIC S7-400 CPUs (CPU 41x-x series)
• Dimensions (W×H×D): 57 mm × 92 mm × 5 mm (long form factor)
• Weight: 25 g
• Certifications: CE, UL, cULus, RoHS

1. For in stock items, we ship within 3 business days after payment confirmation
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4. Items are packed in sturdy boxes (special packaging requests welcome)
5. Daily shipments processed before 4:30 PM with tracking provided (7-15 day delivery estimate)
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