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Siemens Digital Input Module, SM 1221 Series Siemens 6ES7221 1BF32 0XB0, The Siemens 6ES7221 1BF32 0XB0 is a SM 1221 Digital Input Signal Module that converts the level of the external digital signals from the process into the internal signal level o
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GBP103.93
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Siemens Digital Input Module, SM 1221 Series Siemens 6ES7221 1BH32 0XB0, The Siemens 6ES7221 1BH32 0XB0 is a SM 1221 Digital Input Signal Module that converts the level of the external digital signals from the process into the internal signal level o
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GBP157.54
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Siemens Digital Input Output Module, SB 1221 Series Siemens 6ES7221 3BD30 0XB0, The Siemens 6ES7221 3BD30 0XB0 is a SB 1221 Digital Input Output Signal Module that converts the level of the external digital signals from the process to the internal si
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GBP62.34
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