Siemens 6ES7307-1EA00-0AA0 SIMATIC S7 Power Supply

The Siemens 6ES7307-1EA00-0AA0, also cataloged as the 6ES7307-1EA00-0AA0 SIMATIC S7 Power Supply, operates as a dedicated hardware component for stable DC power distribution within SIMATIC S7-300 PLC racks. It converts high-voltage AC mains lines into a regulated 24 VDC backplane supply natively at the chassis tier to maintain electrical integrity parallel to master control network platforms.

Hardware Specifications

Industrial Control & Drive Integration

• Backplane Bus Communication Velocity Licences and Power Routing: The module latches directly onto the standard S7-300 backplane rail structure to supply stable power to the CPU and adjacent I/O modules. It establishes localized hardware voltage rails to prevent line sags from affecting backplane bus communication velocity data packets traveling along the internal bus connectors.
• Profinet / EtherNet/IP Deterministic Networks Protection: High-frequency switching filters inside the module clamp electrical line noise that could otherwise leak into adjacent communication modules. This active filtration shields sensitive networking processors, ensuring that Profinet / EtherNet/IP deterministic networks sustain tight, uninterrupted cyclic update loops free from frame corruption.
• I/O Density Scaling Isolation: Providing a robust 250 VAC isolation rating between the input mains and output field rails, the power supply protects downstream electronics from upstream line spikes. This electrical separation allows users to increase high-density digital and analog I/O counts across the chassis without risking cross-channel voltage leaks or thermal overloads.

Frequently Asked Questions

Q: What specific hardware behaviors manifest if the output terminal lines experience a dead short-circuit?

A: The module operates on a constant-current limiting characteristic curve. If a short-circuit occurs, the output current is capped at approximately 1.2 to 1.3 times the rated 5 A threshold, dropping the output voltage toward zero until the short is removed to prevent component damage.

Q: Can two 6ES7307-1EA00-0AA0 power supply modules be wired in parallel to achieve a 10 A total output load?

A: Yes. Parallel wiring is supported for redundant or enhanced load configurations. Output terminals must be interconnected via matched length conductors to maintain equal current sharing and prevent one module from driving the entire load.