How to Select an Interface Relay for PLC Outputs
A step-by-step guide to matching PLC output type, coil voltage and current, contact rating, and socket style when selecting an interface relay.
Once production ends, supply depends on remaining stock.
No replacement announced yet. Tell us the application and we will propose an alternative.
The Siemens SIMATIC S7 memory card 6ES7952-1KM00-0AA0 is a 5V Flash-EPROM load memory module in the long-design form factor for SIMATIC S7-400 CPUs, storing 4 Mbyte of non-volatile user program data. It plugs into the CPU's card slot and retains its contents without battery backup, unlike the RAM cards in the same family.
Because this is a Flash-EPROM card, the 4 Mbyte of user program data survives a power-down without the CPU battery, which makes it the safer pick over an equivalent-size RAM card for programs that must not be lost on a dead or missing battery. Match the 4 Mbyte capacity to the load memory the target S7-400 CPU is specified for before ordering.
Load memory for SIMATIC S7-400 CPUs that take the long-design card format, used for initial program storage during commissioning or as a replacement for an existing S7-400 memory card.
| eClass | 16 27-24-22-12 |
|---|---|
| ETIM | 10 EC000192 |
| IDEA | 4 6458 |
| UNSPSC | 15 43-20-14-02 |
| General Product Approval Miscellaneous | For use in hazard- |
|---|---|
| General Product Approval EMV | ous locations |
| Part number | 6ES7952-1KM00-0AA0 |
|---|---|
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Phase-out announced by the manufacturer |
| EAN | 4019169009997 |
| ETIM class | EC000192 |
| eCl@ss | 27242212 |
| Net weight | 0.053 kg |
|---|---|
| Country of origin | DE |
| Shipping weight | 0.553 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 01 Nov 2026
No documents are on file for this part yet.
Ask us for the datasheetThe tariff (HS) code on file for 6ES7952-1KM00-0AA0 is 85235110.
The EAN (GTIN) of 6ES7952-1KM00-0AA0 is 4019169009997.
6ES7952-1KM00-0AA0 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
A step-by-step guide to matching PLC output type, coil voltage and current, contact rating, and socket style when selecting an interface relay.
Compare the 5 main PLC types, IEC 61131-3 languages, scan-time sizing, and brand options to choose the right controller for your plant. Shop at...
PLC selection guide for engineers covering IEC 61131 compliance, Siemens, Rockwell, Schneider, ABB comparison, scan time sizing, and wiring. Shop at Stoklink.