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Siemens 6ES7221-1BH22-0XA0
Siemens SIMATIC S7-200 Digital Input Module EM 221, 16DI, DC 24V
Product Description
The Siemens SIMATIC S7-200 Digital Input Module EM 221 is designed to expand the capabilities of your S7-22X CPU. This module provides 16 digital inputs with a 24V DC sinking-sourcing configuration, ensuring reliable and efficient data acquisition for various industrial applications. The EM 221 module is compliant with IEC 61131 standards, guaranteeing high performance and compatibility with other industrial automation systems.
Key features of the EM 221 include optocoupler-based potential separation for enhanced signal integrity and noise immunity, and the ability to connect 2-wire sensors with a permissible quiescent current of up to 1 mA. The module supports both shielded and unshielded cables, with maximum lengths of 500 meters and 300 meters, respectively. Additionally, the EM 221 is equipped with plug-in I/O terminals for easy installation and maintenance.
This module is designed to meet the rigorous demands of industrial environments, with robust construction and reliable performance. It is suitable for a wide range of applications, including manufacturing, process control, and automation systems. The EM 221 module is also compliant with RoHS and REACH directives, ensuring it meets environmental and safety standards.
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Offer details
- Offer from:
Trusted supplier — Romania, member since 2023, 1–4 employees - Availability:
- On requestLead time: 21 days
- Warranty:
- Not specified
- Condition:
- New Surplus
Specifications
- Brand
- Siemens
- Article number
- 6ES7221-1BH22-0XA0
- MFN
- 6ES72211BH220XA0
- Product Family
- SIMATIC S7-200
- Input current from backplane bus
- 5 V DC, max. 70 mA
- Power loss
- typ. 3 W
- Input voltage type
- DC
Available Offers
(25)| Condition | Availability | Supplier | Warranty | Action | |
|---|---|---|---|---|---|
 | Condition New Surplus | Availability On requestLead time: 21 days | SupplierRomaniaTrusted supplier — member since 2023, 1–4 employees | Warranty Not specified | |
| Condition New Surplus | Availability 1 pc. Updated at: 16-09-2026In-Stock | SupplierRomaniaTrusted supplier — member since 2024, 10–19 employees | Warranty 6 months | |
 | Condition New Surplus | Availability 1 pc. Updated at: 16-09-2026In-Stock | Supplier PolandTrusted supplier — member since 2023, 1–4 employees | Warranty Not specified | |
| Condition New Surplus | Availability 2 pcs. Updated at: 15-09-2026In-Stock | Supplier GermanyTrusted supplier — member since 2024 | Warranty 24 months | |
| Condition New Surplus | Availability 4 pcs. Updated at: 15-09-2026In-Stock | SupplierGermanyTrusted supplier — member since 2024 | Warranty 24 months | |
| Condition Refurbished | Availability 5 pcs. Updated at: 15-09-2026In-Stock | SupplierGermanyTrusted supplier — member since 2024 | Warranty 24 months |
Offer with manufacturer lead time
Directly from the manufacturer - with a confirmed, predictable, and fully transparent delivery time.
Documents
Data Sheet
Datasheet for Siemens 6ES7221-1BH22-0XA0, including specifications and features.
CAD Models
3D CAD model and technical drawings, ready for your design software.
Product data updated: 22-08-2026
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