SIMATIC S7-300, digital input SM 321, electrically isolated, 16 DI; DC 24V, 1x 20-pin, hardware interrupt, diagnosis, suitable for isochronous. business - 6ES7 321-7BH01-0AB0 - Siemens
 "6ES7 321-7BH01-0AB0"){kind=small}
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6ES7 321-7BH01-0AB0Manufacturer Brand
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SIMATIC S7-300, digital input SM 321, electrically isolated, 16 DI; DC 24V, 1x 20-pin, hardware interrupt, diagnosis, suitable for isochronous. business - Siemens
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