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Siemens S7-400 6ES7421-7BH01-0AB0 digital input SM421 potential isolation 16DE

Siemens S7-400 6ES7421-7BH01-0AB0 digital input SM421 potential isolation 16DE

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Siemens S7-400 6ES7421-7BH01-0AB0 digital input SM421 potential isolation 16DE Special reminder: https://360plcworld.com can pay online. If you need more product pictures, more quantity, or other questions. (E-mail: sales@360dcs.com what app: +86 18602167154)