The SIEMENS SIMATIC S7-200 Battery Module, model 6ES7291-8BA20-0XA0, is a critical accessory for maintaining system integrity in the S7-200 family of programmable logic controllers. This lithium battery module provides backup power to the CPU’s internal RAM and real-time clock when the main supply is disconnected. It is engineered for seamless integration into standard S7-200 CPUs, ensuring that program data, timers, and counters are retained during power outages or transportation. With its robust construction and long service life, this module is ideal for applications requiring high reliability in harsh industrial environments. Below are the comprehensive technical specifications for this product.
| Specification |
Details |
| Product Type |
Battery Module for SIMATIC S7-200 |
| Model Number |
6ES7291-8BA20-0XA0 |
| Compatible CPUs |
CPU 221, CPU 222, CPU 224, CPU 224XP, CPU 226 (all revisions) |
| Battery Technology |
Lithium (non-rechargeable) |
| Nominal Voltage |
3.6 V DC |
| Capacity |
950 mAh (typical) |
| Backup Time (typical) |
Up to 200 days (at 25°C, fully charged CPU capacitor) |
| Operating Temperature |
-40°C to +70°C |
| Storage Temperature |
-40°C to +85°C |
| Humidity Tolerance |
5% to 95% RH (non-condensing) |
| Dimensions (W x H x D) |
Approx. 23 mm x 60 mm x 15 mm (module only) |
| Weight |
Approx. 20 g |
| Mounting |
Plug-in onto CPU front panel (no tools required) |
| Certifications |
CE, UL, cUL, RoHS compliant |
| Protection Class |
IP20 (when installed in enclosure) |
| Replacement Interval |
Typically 4-5 years under normal use |
| Warranty |
Standard SIEMENS 12-month warranty |
What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22