6ES7321-1BL00-0AA0 | Siemens SIMATIC S7-300 Series Series Input Relay Module for Use with S7-300 Series, Digital, 24 V | RS
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New Original 6ES7321-1BL00-0AA0 Smatic S7-300 Digital Input Module SM321 32 DI 24 VDC 6ES7 321-1BL00-0AA0 - AliExpress
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Digital IO module SM 323; DI 16/DO 16 x DC 24 V/0.5 A; (6ES7323-1BL00-0AA0) - SIMATIC… - ID: 8859629 - Industry Support Siemens
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Siemens Digital Input Module PLC 6es7321-1bl00-0AA0 - China Digital Input Module, PLC | Made-in-China.com
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