Siemens | Simatic S7 6ES7921-4AA00-0AA0

Product Details

• Part Number 1 6ES7921-4AA00-0AA0

Product Description

Within the Simatic S7 product line, Siemens 6ES7921-4AA00-0AA0 serves as a Connector.

From a maintenance perspective, its purpose is tied to the system function named for the product. Connection, configuration, and operating requirements should be confirmed from the installed equipment documentation. Maintenance planning should reference the installed hardware configuration.

Within an S7 installation, the exact hardware order number determines supported interfaces and configuration behavior. System and software compatibility should be checked before replacement. The documented module assignment should remain the basis for selection.

In the signal path, this approach helps preserve the intended system function while keeping selection aligned with the documented ratings, capacity, and compatibility requirements. Ratings and capacity should be verified against the exact model documentation.

Product Documentation

• Common Part Typos 6ES7921-4AA00-0AAO, 6ES7921-4AA00-OAA0, 6ES7921-4AA0O-0AA0, 6ES7921-4AAO0-0AA0, 6ES79214AA000AA0, 6ES79214AA000AAO, 6ES79214AA00OAA0, 6ES79214AA0O0AA0, 6ES79214AAO00AA0, 6ES792I-4AA00-0AA0, 6ES792I4AA000AA0, 6ES792l-4AA00-0AA0, 6ES792l4AA000AA0

Reviews

5.0 Rating

"Ahoy! We are extremely pleased with the cost effective and rapid repair services provided DCS Center. Even though the ship is only 12 years old, many of the..."

- Birdman Chief Engr., United States

"Hey Frank, thank you for your great service and competitive pricing. We will definitely be using you again in the future."

- Patrick O., United States

"DCS CENTER Really saved the day! I had the parts I needed in my hands the day after ordering ( I'm in Toronto Canada ). I highly recommend..."

- Steven T., United States

"DCS Center provides phenomenal service. They are prompt with a response. They have helped me numerous times with surplus and new items. I look forward to a long..."

- Tonya M., United States

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

- Alex L., United States

"Dear Frank and James, This morning we tested the "new" IEPAF01 cards. Everything is fine!!! I want to express my thanks and my personal acknowledgement on how you..."

- Carmelo I., Italy