
Inquiry for Siemens 6AG1221-1BF32-4XB0 Digital Input Module
This listing details the Siemens 6AG1221-1BF32-4XB0 digital input module designed for harsh environments. Review the provided technical parameters to prepare your specific project inquiry.
Quick Facts
- Part number
- 6AG1221-1BF32-4XB0
- Brand
- Siemens
- Category
- I/O Modules
- Product type
- I/O Modules
- Lifecycle
- Active Product
- Dimensions
- 10.5 x 9.00 x 5.7 cm
- Net weight
- 0.16 Kg
- Source category
- SIPLUS SM 1221 digital input modules
Product Overview
The Siemens 6AG1221-1BF32-4XB0 is a digital input module derived from the standard 6ES7221-1BF32-0XB0 design. It features conformal coating for enhanced protection against environmental factors. Review Siemens 6AG1221-1BF32-4XB0 as I/O Modules with source category SIPLUS SM 1221 digital input modules, recorded lifecycle Active Product, and submitted model identity.
This module supports eight digital inputs operating at 24 V DC with sink/source configuration. It is categorized under active products within the SIPLUS digital modules range.
Technical Review Notes
- The unit measures 10.5 x 9.00 x 5.7 cm in physical dimensions for compact integration. Keep dimensions 10.5 x 9.00 x 5.7 cm and net weight 0.16 Kg unchanged while comparing project documents and product image evidence.
- Net weight is recorded at 0.16 Kg, facilitating easy handling during installation procedures.
- Operating temperature range extends from -20 to +60 °C for varied industrial conditions.
- Input type consists of eight discrete digital signals for reliable process monitoring tasks.
- Voltage specification is fixed at 24 V DC for standard control system application context.
- Signal configuration supports both sink and source modes for flexible wiring arrangements.
Model Identification
- Base model reference links to the standard S7-1200 SM 1221 series architecture. Use the source path Automation technology / SIPLUS digital modules / SIPLUS SM 1221 digital input modules to confirm catalog context, model family, parameter review scope, and technical inquiry preparation notes.
- Suffix 4XB0 indicates specific modifications for extended environmental resilience and durability.
- Conformal coating application distinguishes this variant from standard uncoated digital input modules.
- Brand designation remains Siemens, ensuring alignment with established industrial automation standards.
Technical Parameters
| Product type | I/O Modules |
|---|---|
| Lifecycle | Active Product |
| Dimensions | 10.5 x 9.00 x 5.7 cm |
| Net weight | 0.16 Kg |
| Source category | SIPLUS SM 1221 digital input modules |
Parameters are factual source fields retained for model review.
Parameter Review
- Verify the required number of digital inputs matches the eight-channel capacity listed. Check product-owned images, label text, connector area, and submitted model references against the exact 6AG1221-1BF32-4XB0 record before publication.
- Confirm that the 24 V DC supply voltage aligns with existing panel power.
- Check if the sink/source input type suits your specific sensor wiring needs.
- Ensure the operating temperature range covers the maximum ambient conditions of your site.
- Review physical dimensions to confirm fit within the designated rack or enclosure space.
Catalog Classification
Image & Label Review
- Inspect the front label for the exact part number 6AG1221-1BF32-4XB0 verification. Review Siemens 6AG1221-1BF32-4XB0 as I/O Modules with source category SIPLUS SM 1221 digital input modules, recorded lifecycle Active Product, and submitted model identity.
- Check terminal block orientation for correct wiring access during installation planning.
- Note the presence of conformal coating on internal components visible through openings.
- Compare physical size against recorded mounting space in the control cabinet layout.
Product Image Gallery

Inquiry Preparation
- Gather your current project documentation specifying the required digital input module quantity. Keep dimensions 10.5 x 9.00 x 5.7 cm and net weight 0.16 Kg unchanged while comparing project documents and product image evidence.
- Prepare details regarding the operating environment temperature and potential exposure conditions.
- List any specific wiring diagrams or sensor types requiring sink/source configuration support.
- Include your preferred contact information for direct communication regarding this product inquiry.
Category Context
This module falls under the broader Automation technology sector for industrial applications.
It is classified specifically within the SIPLUS digital modules product family group.
Review Notes
- The product class indicates review restrictions requiring direct contact with Siemens review contacts.
- Lifecycle status is confirmed as Active Product for ongoing inquiry preparation consideration.
- Source parameter review should precede final submission to ensure technical accuracy.
- Project document review helps align module specifications with overall system requirements.



