6ES7321-1BH50-4AA2
Product ID:223565
Updated: 2026/4/3

Key Features
- 1Acquire 16 isolated digital inputs for precise and secure data collection. 2、Operate reliably with 24V DC power in demanding industrial environments. 3、Ensure top performance with 100% original Siemens quality and durability. 4、Benefit from a 12-month warranty for complete project peace of mind. 5、Integrate seamlessly with your existing S7-300 PLC automation system.
Technical Specifications
Detailed engineering parameters
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Depth | 120mm | Height | 125mm |
| Width | 40mm | Supply Voltage Type | DC |
| Number of Digital Outputs | 0 | Number of Digital Inputs | 16 |
| Applicable for Safety Functions | No | Product Type | S7-300 Digital Expansion |
| Lifecycle | P.M300 | Country of Origin | China |
| ECCN | N | AL | N |
| Model Number | 6ES7321-1BH50-4AA2 |
Specifications may be subject to change without notice
