Siemens 6ES7407-0KA02-0AA0 PS407 10A Power Supply for SIMATIC S7-400: Specifications, Applications and Replacement Guide

The Siemens 6ES7407-0KA02-0AA0 is a PS407 10A power supply module designed for the SIMATIC S7-400 automation system. As an important power supply component for S7-400 PLC racks, the PS 407 10A provides the required DC power for the system backplane and connected automation modules.

For industrial automation projects, plant maintenance and S7-400 system replacement, finding the correct Siemens 6ES7407-0KA02-0AA0 power supply is important to minimize PLC downtime and maintain stable operation.

What Is Siemens 6ES7407-0KA02-0AA0?

The 6ES7407-0KA02-0AA0 is a Siemens SIMATIC S7-400 PS407 10A power supply module.

According to Siemens documentation, the PS 407 10A is designed for a wide input-voltage range and supplies 5 V DC/10 A and 24 V DC/1 A on the secondary side. The module is intended for use with SIMATIC S7-400 systems and is suitable for industrial automation applications requiring a reliable rack power supply.

Key Product Information

The wide-range input capability allows the PS407 to operate with different industrial power supply conditions. Siemens documentation specifies an AC input range of 85–264 V and a DC input range of 88–300 V for the PS 407 10A.

Why Is the PS407 10A Important in an S7-400 System?

A stable power supply is essential for the operation of an industrial PLC system. The S7-400 power supply provides the DC voltages required by the system components installed in the rack.

The 6ES7407-0KA02-0AA0 provides:

• 5 V DC with up to 10 A output current

• 24 V DC with up to 1 A output current

• Wide-range AC/DC input

• Power supply for the S7-400 backplane

• Industrial-grade power management for automation systems

Siemens identifies the module as “SIMATIC S7-400, Power supply PS407: 10 A, wide range, UC 120/230V, 5 V DC/10 A.”

6ES7407-0KA02-0AA0 Applications

The Siemens PS407 10A power supply can be used in a wide range of industrial automation environments where SIMATIC S7-400 systems are installed.

Typical applications include:

1. Factory Automation

S7-400 PLC systems are commonly used for centralized industrial control. The PS407 provides the rack power required by the PLC system and its modules.

2. Process Automation

Industrial process control systems can require reliable PLC power supplies for continuous operation. The PS407 10A is suitable for S7-400 installations used in large automation systems.

3. S7-400 System Maintenance

For existing S7-400 installations, replacing an aging or failed power supply with the correct Siemens part number can help reduce equipment downtime.

4. PLC Spare Parts Inventory

Maintenance departments and industrial automation distributors can keep 6ES7407-0KA02-0AA0 as a replacement spare for S7-400 PLC systems.

6ES7407-0KA02-0AA0 Replacement Considerations

Before ordering a replacement S7-400 power supply, always check the complete Siemens article number.

For example:

6ES7407-0KA02-0AA0

should not automatically be treated as interchangeable with every PS407 or S7-400 power supply.

The PS407 family includes different versions and current ratings. Siemens documentation separately identifies the PS 407 10A and PS 407 10A R models, with the latter designed for redundant operation.

Therefore, when replacing an existing power supply, verify:

1. Siemens article number

2. Power supply model

3. Rated output current

4. Input voltage requirements

5. S7-400 rack configuration

6. Whether redundancy is required

7. Existing system documentation

This is especially important for older PLC installations where the original equipment documentation may be incomplete.

Siemens PS407 10A vs. PS407 10A R

The 6ES7407-0KA02-0AA0 is the standard PS407 10A power supply.

Siemens also documents the PS 407 10A R, which is designed for redundant power supply configurations. The two products should not be treated as identical simply because both belong to the PS407 family.

When purchasing a replacement, use the complete Siemens part number rather than searching only for “S7-400 power supply” or “PS407 10A.”

How to Identify the Correct Siemens S7-400 Power Supply

If you are looking for a replacement power supply for an existing S7-400 PLC, the easiest method is to check the product label on the installed module.

Look for:

6ES7407-0KA02-0AA0

Then compare the following information:

• Siemens manufacturer marking

• Article number

• PS407 model

• Rated voltage

• Output current

• Physical condition

• Packaging and product documentation

Siemens currently lists 6ES7407-0KA02-0AA0 as a SIMATIC S7-400 PS407 power supply with a 10 A rating and wide-range 120/230 V specification.

Why Buy 6ES7407-0KA02-0AA0 as an Industrial Spare?

For factories operating older S7-400 automation systems, keeping critical PLC spare parts available can reduce the risk of extended production downtime.

The Siemens 6ES7407-0KA02-0AA0 PS407 10A is particularly relevant when:

• An existing S7-400 power supply has failed

• A maintenance team needs a direct replacement

• A production line requires an emergency spare

• An automation system is undergoing refurbishment

• An industrial distributor needs S7-400 spare parts

• A plant is maintaining legacy Siemens PLC equipment

For international buyers, confirming the exact article number before purchasing is recommended.

Frequently Asked Questions

Is 6ES7407-0KA02-0AA0 a Siemens S7-400 power supply?

Yes. Siemens identifies 6ES7407-0KA02-0AA0 as the SIMATIC S7-400 PS407 10A power supply module.

What is the output of the PS407 10A?

The PS407 10A provides 5 V DC/10 A and 24 V DC/1 A outputs according to Siemens S7-400 documentation.

What input voltage does 6ES7407-0KA02-0AA0 support?

The PS407 10A has a wide-range input. Siemens documentation specifies 85–264 V AC and 88–300 V DC permitted input ranges.

Is 6ES7407-0KA02-0AA0 suitable for S7-400 PLC systems?

Yes. It is specifically designed as a power supply module for the SIMATIC S7-400 automation system.

Where can I buy Siemens 6ES7407-0KA02-0AA0?

CXY Trade PLC supplies Siemens PLC spare parts and lists the 6ES7407-0KA02-0AA0 Siemens PS407 10A power supply module for industrial automation customers.

For price, availability, shipping options and product verification, contact the CXY Trade PLC sales team.

Conclusion

The Siemens 6ES7407-0KA02-0AA0 PS407 10A is an S7-400 system power supply designed to provide stable DC power for SIMATIC S7-400 automation systems. Its wide-range input and 5 V DC/10 A and 24 V DC/1 A outputs make it an important component for S7-400 PLC installations.

When purchasing an S7-400 replacement power supply, always verify the complete Siemens article number 6ES7407-0KA02-0AA0 to ensure the correct product is selected.

CXY Trade PLC can provide the Siemens PS407 10A power supply for industrial automation maintenance, PLC replacement and spare-parts requirements.

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