



The ABB TA951F Battery Module is a compact lithium backup battery designed specifically for ABB Freelance distributed control systems. It is primarily used with the AC900F controller to buffer RAM and maintain non-volatile variables when the main power supply is interrupted.
In industrial automation systems, preserving controller memory during unexpected shutdowns is critical. The TA951F provides reliable memory retention, ensuring that configuration data, application variables, and process parameters remain intact even during power loss. Its high-quality lithium cell offers long service life and dependable performance in demanding industrial environments.
Thanks to its compact structure and easy installation design, the TA951F integrates seamlessly into ABB controller architectures. This small but essential component helps maintain system continuity and protects valuable control data in complex automation systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | TA951F |
| Article Number | 3BDH001030R0001 |
| Manufacturer | ABB |
| Module Type | Lithium Battery for RAM Buffering |
| Battery Chemistry | Lithium Metal |
| Nominal Voltage | 3 V |
| Capacity | Approx. 1450 mAh |
| Controller Compatibility | ABB AC900F (Freelance DCS) |
| Function | Memory backup for controller RAM |
| Operating Temperature | −20°C to +70°C |
| Storage Temperature | −40°C to +85°C |
| Dimensions (L × W × H) | 40 × 17 × 17 mm |
| Weight | 0.02 kg |
The TA951F battery ensures reliable buffering of controller RAM and protection of non-volatile variables in the AC900F controller.
Recommended Related Models
| Model | Description |
|---|---|
| PM902F | Freelance CPU Controller Module |
| CM772F | PROFIBUS Communication Module |
| TA724F | Dummy Coupler Module |
| TA924F | Coupler Protection Accessory |
| TD951F | Controller Display Unit |
These modules are commonly installed together in ABB Freelance control systems to create a complete and reliable automation platform.
Popular ABB Models
| Model | Module Type |
|---|---|
| PM590-ETH | PLC CPU Controller |
| CI840A | Communication Interface Module |
| AI830A | Analog Input Module |
| SB822 | Redundant Power Supply Module |
| PP865A | Industrial Operator Panel |
These ABB modules are widely used across process industries and large-scale automation installations.