The Siemens 6ES7307-1BA00-0AA0 is a 24V DC/2A regulated power supply for SIMATIC S7-300 PLCs. It features automatic 120/230V AC input switching, short-circuit protection, and a compact DIN rail mountable design.
The Siemens 6ES7307-1BA00-0AA0 is a dedicated PS307 load power supply module. It serves the SIMATIC S7-300 PLC system exclusively. This unit provides a stabilized 24V DC output for the CPU and I/O modules. Consequently, it establishes a reliable electrical foundation for industrial automation. The module mounts directly onto the S7-300 standard rail. This design ensures a seamless mechanical and electrical connection to the controller. Furthermore, its compact profile helps engineers optimize space within control cabinets.
This power supply features automatic range switching for global compatibility. It accepts single-phase AC inputs between 120V and 230V. Specifically, it handles 85–132V AC or 170–264V AC ranges. The module converts these inputs into a regulated 2A direct current output. Additionally, the unit offers short-circuit and overload protection for the entire rack. If an electrical fault occurs, the module safely shuts down to prevent damage. Its high efficiency minimizes heat generation during continuous operation.
The PS307 module excels in demanding industrial environments. It provides reliable mains buffering to survive brief power dips. Moreover, the unit facilitates the connection of multiple S7-300 expansion racks. Users can easily monitor the device via the integrated status LED. This indicator shows the presence of the 24V output voltage. Because of its rugged construction, the module guarantees a long service life. It remains a standard choice for machine control and process automation worldwide.
Mounting the 6ES7307-1BA00-0AA0 requires no specialized tools beyond the S7-300 rail system. The terminal blocks allow for secure wiring of the input and output cables. Furthermore, the module maintains excellent electromagnetic compatibility (EMC). This prevents interference with sensitive signal modules nearby. Engineers should ensure adequate ventilation within the enclosure for optimal cooling. This original Siemens component ensures full compatibility with all SIMATIC S7-300 CPUs.
| Feature | Technical Data |
| Manufacturer | Siemens |
| Order Number | 6ES7307-1BA00-0AA0 |
| Series | SIMATIC S7-300 / PS307 |
| Input Voltage | 120/230 V AC (Auto-range) |
| Output Voltage | 24 V DC |
| Output Current | 2 Amperes |
| Protection Class | Class I |
| Operating Weight | 0.42 kg |
| Dimensions (W x H x D) | 40 x 125 x 120 mm |
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