Siemens | Simatic S5 6ES5951-7LB21

Product Details

• Part Number 1 6ES5951-7LB21
• UPC 662643237313
• HTS 85044082
• Country of Origin Romania

Product Description

6ES5951-7LB21 is identified by Siemens as a Power Supply within the Simatic S5 family.

For replacement planning, its role is to provide the electrical supply required by compatible control hardware, helping keep controller, communication, or I/O functions energized within the intended system design. Maintenance planning should reference the installed hardware configuration.

In a SIMATIC S5 system, module selection is governed by the controller family, rack arrangement, electrical interface, and configured program. The exact article number should be matched before installation. The product remains part of the broader control and signal-handling arrangement.

Country of origin is listed as Romania.

When this product is used for lifecycle support, technicians should confirm the installed revision, connection arrangement, and system assignment rather than assuming interchangeability with a similarly named module. System drawings should be consulted before replacement.

Product Documentation

• Specification PDF siemens-simatic-s5.pdf
• Part Notes

  SIEMENS SIMATIC S5 Power supply 951 for S5-115U/H without backup battery 120/230 VAC; 5 VDC, 3 A

  Product was cancelled by Siemens without replacement 10.01.2005

• Cancellation Notice

  Product was cancelled by Siemens without replacement 10.01.2005

• Common Part Typos 6ES5951-7LB2I, 6ES5951-7LB2l, 6ES59517LB21, 6ES59517LB2I, 6ES59517LB2l, 6ES595I-7LB21, 6ES595I7LB21, 6ES595l-7LB21, 6ES595l7LB21

Reviews

5.0 Rating

"I would like to say thanks a lot for all. I’ve had good service with you and it’s a pleasure"

- Audrey, Québec, Canada

"We received the 6ES7141-1BF12-0XB0 module yesterday - thank you very much! We will probably order another one next week. Thanks"

- George C., United States

"Frank your customer service has been excellent, you go out of your way to help and support. Your response and feedback is exceptional, its a pleaure to engage..."

- Selva Moodley, South Africa

"Been doing business with the DCS Center for years. Quick responses, solid repairs and excellent follow-up support!"

- Alex L., United States

"Frank, we are very happy with your service. Our test mechanic has checked the controllers, they all are good!"

- Tony N., United States

"James is the BEST! He makes sure all your questions are answered and that you're happy with your order before it's shipped. My part arrived right on time...."

- Katie, United States