Siemens | Simatic S5 6ES5420-1AA21
Siemens Simatic S5 Digital Input/Output Module (6ES5420-1AA21).
Stock Status Available NowWarranty
DCS Center Warranty Included
Shipping
Worldwide shipping via DHL, UPS, and Fedex
Repair Time
3-5 weeks. Rush Repair options are available.
Product Details
- Part Number 1 6ES5420-1AA21
Product Description
Within the Simatic S5 product line, Siemens 6ES5420-1AA21 serves as a Digital Input/Output Module.
From a maintenance perspective, digital input hardware creates the path from field-level status signals to control logic, allowing the system to evaluate operating conditions and respond through configured sequences or protective actions. The installed revision should be confirmed before the product is applied.
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 assigned system function should be preserved through installation and service.
In the signal path, this approach helps preserve the intended system function while keeping selection aligned with the documented ratings, capacity, and compatibility requirements. Application should remain aligned with the documented system design.
Product Documentation
- Common Part Typos 6ES5420-1AA2I, 6ES5420-1AA2l, 6ES5420-IAA21, 6ES5420-lAA21, 6ES54201AA21, 6ES54201AA2I, 6ES54201AA2l, 6ES5420IAA21, 6ES5420lAA21, 6ES542O-1AA21, 6ES542O1AA21
Reviews
"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 cables Frank. They are in great shape, including the connectors. Thanks for the good service."
- Larry A., 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"Hi Frank and thank you for your quick response - good service. We look forward to doing more business with DCS"
- Serge, United States"Thank you for your help in finding new surplus parts for our ABB system. Y'all always do a great job for us. We are happy to buy from..."
- Amanda, 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..."
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