Siemens SIMATIC S7-300 Power Supply Module

Description

The Siemens 6ES7 307-1EA00-0AA0, also known as the PS 307, is a robust and reliable power supply designed specifically for the SIMATIC S7-300 PLC family. It converts standard AC mains voltage into a stable 24V DC, 5A output, essential for powering the CPU and other modules within the S7-300 rack. Featuring a selectable input voltage, it offers flexibility for various industrial environments.

Specifications

• Manufacturer: Siemens
• Product Series: SIMATIC S7-300
• Type: Power Supply PS 307
• Input Voltage: 120V / 230V AC (switch-selectable)
• Input Frequency: 47 to 63 Hz
• Output Voltage: 24V DC
• Output Current: 5A
• Mounting: S7-300 Rail

Label Info

• Model: 6ES7 307-1EA00-0AA0
• Input: AC 230V/1.3A or 120V/2.2A, 50-60Hz
• Output: DC 24V / 5A
• Max Operating Temperature: 60 deg C

Application

This power supply is the standard choice for small to medium-sized Siemens S7-300 automation systems used in manufacturing, process control, and building automation. It ensures a consistent power source for critical control applications.

Country of Origin

Made in Austria.

CO2 Impact

Opting for this reconditioned unit instead of a new one prevents the emission of approximately 24 kg of CO2. This saving is comparable to driving a car for 120 kilometers.

Availability

This item is a tested, used product. We guarantee its functionality and offer a warranty. Order now from PLC2Day for expert support and fast delivery.

FAQ

No, the standard 6ES7307-1EA00-0AA0 is not designed for direct parallel connection for redundancy. For redundant power supply systems in the S7-300 range, Siemens offered specific redundant power supplies and decoupling modules.

The voltage selector switch allows you to manually configure the power supply for different AC input voltages. You must set it to either 120V AC or 230V AC to match your local mains power before connecting it to avoid damaging the unit.

With a 5A output at 24V DC, this power supply is suitable for small to medium S7-300 configurations. However, you must always calculate the total current consumption of your specific CPU and all I/O modules on the backplane bus to ensure the 5A capacity is not exceeded. For larger systems, a 10A version or an external SITOP power supply might be necessary.

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Friday, March 13, 2026