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Siemens SIMATIC S7 automation module 6ES7221-1BH32-0XB0
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Product Description
Siemens 6ES7221-1BH32-0XB0 — SIMATIC S7 automation module. Compact controller or expansion module for the S7-1200 or S7-1500 PLC platform. SIMATIC S7-1200, DIGITAL INPUT SM 1221, 16 DI, 24VDC, SINK/SOURCE INPUT.
Technical Specifications
- Manufacturer part number (MPN)
- 6ES7221-1BH32-0XB0
- EAN / GTIN
- 6940408101920
- Sales unit
- pcs
- Product type designation
- SM 1221, DI 16x24 V DC
- Supply voltage – Rated value (DC)
- 24 V
- permissible range, lower limit (DC)
- 20.4 V
- permissible range, upper limit (DC)
- 28.8 V
- Input current from backplane bus 5 V DC, max.
- 130 mA
- from load voltage L+ (without load), max.
- 4 mA; per channel
- Power supply to the transmitters
- present
- Power loss, typ.
- 2.5 W
- Number of digital inputs
- 16
- in groups of
- 4
- Input characteristic curve in accordance with IEC 61131, type 1
- Yes
- Number of simultaneously controllable inputs, up to 40 °C, max.
- 16
- horizontal installation, up to 50 °C, max.
- 16
- Input voltage – Rated value (DC)
- 24 V
- for signal "0"
- 5 V DC at 1 mA
- for signal "1"
- 15 V DC at 2.5 mA
- for signal "0", max. (permissible quiescent current)
- 1 mA
- for signal "1", min.
- 2.5 mA
- for signal "1", typ.
- 4 mA
- Input delay parameterizable
- 0.2 ms, 0.4 ms, 0.8 ms, 1.6 ms, 3.2 ms, 6.4 ms and 12.8 ms
- Cable length shielded, max.
- 500 m
- Cable length unshielded, max.
- 300 m
- Diagnostic alarm
- Yes
- Potential separation digital inputs between the channels, in groups of
- 4
- IP degree of protection
- IP20
- CE mark
- Yes
- CSA approval
- Yes
- UL approval
- Yes
- FM approval
- Yes
- KC approval
- Yes
- Marine approval
- Yes
- Fall height, max.
- 0.3 m; five times, in product package
- Ambient temperature during operation – min.
- -20 °C
- Ambient temperature during operation – max.
- 60 °C
- permissible temperature change
- 5°C to 55°C, 3°C / minute
- Ambient temperature during storage/transportation – min.
- -40 °C
- Ambient temperature during storage/transportation – max.
- 70 °C
- Air pressure Storage/transport, min.
- 660 hPa
- Air pressure Storage/transport, max.
- 1 080 hPa
- Relative humidity Operation at 25 ℃ without condensation, max.
- 95 %
- required front connector
- Yes
- Enclosure material (front)
- plastic
- Dimensions – Width
- 45 mm
- Dimensions – Height
- 100 mm
- Dimensions – Depth
- 75 mm
- Weight, approx.
- 210 g
- Voltage type (supply voltage)
- DC
- Digital outputs configurable
- Yes
- Input current at signal 1
- 4 mA
- Type of voltage (input voltage)
- DC
- Type of digital output
- None
- Short-circuit protection, outputs available
- No
- Type of electric connection
- Screw connection
- Explosion safety category for gas
- ATEX gas-ex-protection, Cat. 3G
- Explosion safety category for dust
- None
- Width
- 45 mm
- Height
- 100 mm
- Depth
- 75 mm
- Country of origin
- Germany
Standards & Compliance
- HS Code
- 8538.90
Cross References
- EAN 6940408101920
- SAP 1000347864
- Code 8387862
Product Documentation
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Technical guides
Catalogue entry last verified: 2026-09-29. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy 6ES7221-1BH32-0XB0?
- 6ES7221-1BH32-0XB0 can be ordered from cballast.com as a Siemens catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this Siemens product?
- The manufacturer part number is 6ES7221-1BH32-0XB0.
- What is the HS code for 6ES7221-1BH32-0XB0?
- The customs tariff (HS) code for 6ES7221-1BH32-0XB0 is 8538.90.
- Who manufactures 6ES7221-1BH32-0XB0?
- 6ES7221-1BH32-0XB0 is a Siemens product in the Control & Automation range.
- Is a datasheet available for 6ES7221-1BH32-0XB0?
- Yes — the 6ES7221-1BH32-0XB0 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 6ES7221-1BH32-0XB0?
- The minimum order quantity is 1.
- Is 6ES7221-1BH32-0XB0 available?
- Yes — 6ES7221-1BH32-0XB0 is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).
