Siemens SM 1221 DC
Digital input module

Siemens SM 1221 DC
In Stock


siemens sm 1221 dc

  • 6ES7221-1BH32-0XB0
  • 8 digital inputs
  • Wide operating temperature range
  • Protection against vibrations and chemicals
  • Quick startup

Item Number: SM 1221 DC
Total price: 211.00
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Siemens SM 1221 DC digital input module S7-1200


  • Part number: 6ES72211BH320XB0
  • 8 digital inputs (24 V DC, sink/source)
  • Wide operating temperature range: -40°C to +70°C
  • Protection against vibrations and chemicals thanks to conformal coating
  • Fast start-up even at low temperatures (from -25°C)
  • Compatible with SIMATIC S7-1200 controllers
  • Easy mounting on DIN rail
  • Product family: SIPLUS SM 1221 digital input modules
  • Product life cycle stage: Active
  • Country of origin: Germany
  • Compliance with RoHS and WEEE directives


  • Increased resistance to extreme environmental conditions
  • Increased reliability and safety of operation
  • Flexibility in connecting various sensors and devices
  • Easy integration into automation systems


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