MPN 3SK1121-1AB40 Brand siemens Model 3SK1121-1AB40 UPC Does not apply. Your Best Online Business Partner. If you want to return the item, please make sure the item is un-opened. This item is in the category "Business & Industrial\Industrial Automation & Motion Controls\PLCs & HMIs\PLC Processors". The seller is "theplc-2020" and is located in this country: HK.This item can be shipped worldwide.