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Siemens 6EP3437-8SB00-0AY0


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Part Number6EP3437-8SB00-0AY0
TypePower Supplies
Model #6EP34378SB000AY0
Warranty2 Year
RangeSITOP PSU8200
Input3-phase AC
Rated voltage400-500 V
Rated line frequency50/60 Hz
Mains bufferingat Vin = 400 V
Voltage outControlled, isolated DC
ControlClosed loop
Input current2.1 A @ 400V
V out DC (out)24 V
Status displayGreen LED
Startup delay0.1 s max
SignalingRelay contact
Rated current40 A
Power supply960 W

Our Repair Services

MRO Electric repairs CNCs, PLCs, Servo/Spindle Drives, Motors, Amplifiers, VFDs, HMIs, and more, most of which can be repaired in only 3-5 days.

Repair Benefits

MRO can restore your failed 6EP3437-8SB00-0AY0 to remanufactured condition and save you up to 75% compared to buying new. We offer standard repair pricing to ensure you the best value for your repair.

Our certified technicians use rigorous testing procedures to ensure your parts are restored to fully functioning condition. Our team proudly stands behind all repairs by providing a minimum 2-year warranty.

Our technicians have vast experience with most manufacturers and models. In addition to this 6EP3437-8SB00-0AY0 we also repair a wide range of other Siemens products, so if you don’t see the model you need, please contact us.

Core Exchange

If you are interested in getting credit for your faulty 6EP3437-8SB00-0AY0, just let us know, and we can issue you an RMA to send it in as an exchange. Our exchange program provides you with savings and keeps us stocked for the next time you need anything.

  • Shipping Weight : 1lb

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Ask about exchanging your faulty 6EP3437-8SB00-0AY0 for credit when ordering from MRO Electric

MRO Electric provides a 2-year warranty on every item we sell and repair. We stand behind all of our products and guarantee them for the full 2 years. If there is an issue with any of our products within the warranty period, we will evaluate the unit and repair or replace it under warranty.

Siemens 6EP3437-8SB00-0AY0 Overview

Siemens products are manufactured in Germany and are designed for Automotive, aerospace, power generation, and electronics usage. They come with a 2-year warranty from MRO Electric. We also carry Power Supplies from other manufacturers such as FANUC and Yaskawa.

Siemens 6EP3437-8SB00-0AY0 SITOP PSU8200 

The Siemens 6EP3437-8SB00-0AY0 is a high-quality power supply unit from the SITOP PSU8200 series, manufactured by Siemens, a renowned leader in industrial automation and electrification. This power supply unit is specifically designed to deliver reliable and uninterrupted power to critical industrial applications. With a wide input voltage range of 400-500 VAC, 50/60 Hz frequency compatibility, and a robust 24 VDC output capable of providing up to 40 amps of current, the 6EP3437-8SB00-0AY0 is a trusted solution for ensuring stable and continuous power supply in demanding industrial environments.

Reliable and Stable Power Source:

The 6EP3437-8SB00-0AY0 is designed to be a dependable and stable power source, catering to the needs of critical industrial processes. With its wide input voltage range of 400-500 VAC, this power supply unit can accommodate various voltage fluctuations and ensure that the connected equipment receives a consistent and reliable power supply. This feature is crucial in industrial settings where voltage fluctuations are common, providing a safety buffer to prevent power interruptions that could lead to production downtime or equipment damage.

Versatile Frequency Compatibility:

The 6EP3437-8SB00-0AY0 is engineered to handle both 50 Hz and 60 Hz frequencies, making it suitable for use in different regions and applications. The power supply's ability to operate within this broad frequency range ensures its adaptability to various industrial environments, providing users with the flexibility needed to implement the unit in global applications without requiring different power supplies for different regions.

High Power Output:

With a robust 24 VDC output capable of providing up to 40 amps of current, the 6EP3437-8SB00-0AY0 is equipped to deliver sufficient power to a wide range of industrial devices and equipment. This power output is especially valuable for applications that demand high electrical loads, such as motor drives, solenoids, and heavy machinery. The power supply's ability to deliver ample current ensures that industrial processes run smoothly and efficiently, reducing the risk of voltage drops and related performance issues.

SITOP PSU8200 Series:

As part of the SITOP PSU8200 series, the 6EP3437-8SB00-0AY0 benefits from Siemens' extensive expertise and experience in developing reliable and high-performance power supply units. The PSU8200 series is renowned for its robustness, efficiency, and cutting-edge technology, ensuring that the 6EP3437-8SB00-0AY0 upholds Siemens' commitment to quality and reliability. Users can trust the SITOP PSU8200 series for powering their critical industrial applications with precision and consistency.

Efficiency and Energy Savings:

Siemens places a strong emphasis on energy efficiency in its products, and the 6EP3437-8SB00-0AY0 is no exception. The power supply unit is designed to optimize power conversion and minimize energy wastage, ensuring that the connected devices receive the required power while consuming the least amount of energy possible. By reducing energy consumption, the 6EP3437-8SB00-0AY0 contributes to cost savings and supports sustainable and eco-friendly industrial operations.

Built-in Protection Features:

The 6EP3437-8SB00-0AY0 comes equipped with a range of built-in protection features to safeguard both the power supply unit and the connected equipment. Overcurrent protection, overvoltage protection, and short-circuit protection are among the safety mechanisms integrated into the power supply, preventing potential damage and disruptions caused by electrical faults. These protective features enhance the reliability and longevity of the 6EP3437-8SB00-0AY0, ensuring uninterrupted operation and minimizing maintenance requirements.

Compact and Space-Efficient Design:

The 6EP3437-8SB00-0AY0's compact and space-efficient design makes it an ideal choice for installations with limited space availability. The power supply's small form factor enables easy integration into control panels, cabinets, and tight industrial enclosures. Its space-saving design ensures efficient use of valuable real estate while providing robust and reliable power for industrial equipment.


The Siemens 6EP3437-8SB00-0AY0 from the SITOP PSU8200 series is a dependable and efficient power supply unit, delivering stable and uninterrupted power to critical industrial applications. With its wide input voltage range, versatile frequency compatibility, high power output, and built-in protection features, the 6EP3437-8SB00-0AY0 provides a reliable power source for a wide range of industrial devices and machinery. Siemens' commitment to quality, efficiency, and safety is evident in the design of the 6EP3437-8SB00-0AY0, making it a trusted solution for ensuring smooth and uninterrupted operations in demanding industrial environments.

Contact Us Today For More Information About Siemens Products

Check out the rest of our Siemens product line. Whether it's using our online instant quote feature, giving us a call at (800) 691-8511, or emailing us at, we strive for customer satisfaction first. This means lower prices and better service for you. For more products like 6EP3437-8SB00-0AY0, take a look at more from our Power Supplies line. If your current unit has gone bad, take advantage of our Core Exchange program for the most inexpensive route. You can learn more about this program on our FAQ page here. We offer a repair service on all of our 6EP3437-8SB00-0AY0 products that keep your downtime to a minimum. To stay up to date on manufacturer news, as well as access any of our datasheets, manuals, or other documentation, we suggest you take a look at our blog.

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I needed a special drive, found it, and I was quickly assisted by Joe Kaminski. Everything was exactly as it should be....


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