During technical comparisons, 6AG1221-1BH32-2XB0 appears alongside Schneider PLC, Siemens HMI and 6Es7 215 1Ag40 0Xb0 so engineers assess signal types, ingress protection, and ambient tolerances accurately.
6AG1221-1BH32-2XB0 - Siemens S7-1200 16DI Sink Source
The 6AG1221-1BH32-2XB0 from Siemens is a reliable PLC module designed for digital input applications in modern automation systems.

| Brand | Siemens |
| Product Type | PLC - Programmable logic Controller |
| Series | Simatic S7-1200 |
| SKU / MPN | 6AG1221-1BH32-2XB0 |
Siemens S7-1200 16DI Sink Source 6AG1221-1BH32-2XB0 Technical Specifications:
| Specification | Value |
|---|---|
| Product Description | SIPLUS S7-1200 SM 1221 16DI based on 6ES7221-1BH32-0XB0 with conformal coating, -40…+70 °C, start up -25 °C, digital input 16 DI, 24 V DC, sink/source |
| Product Family | SIPLUS SM 1221 digital input modules |
| Product Lifecycle (PLM) | PM300:Active Product |
| Net Weight (kg) | 0,198 Kg |
| Packaging Dimension | 8,90 x 10,70 x 5,90 |
| Package Size Unit of Measure | CM |
| Country of Origin | Germany |
The Siemens 6AG1221-1BH32-2XB0 is engineered for long-term reliability under demanding conditions. Built on the SIPLUS SM 1221 digital input module platform, it provides 16 digital inputs at 24 V DC in a sink/source configuration, giving flexibility for diverse sensor and switch connections. Its conformal coating protects against moisture, dust, and corrosive environments, while the wide operating range of -40 °C to +70 °C ensures stable performance in extreme climates. With a net weight of 0.198 kg and compact dimensions of 8.90 × 10.70 × 5.90 cm, the unit saves space in control panels without compromising strength. Manufactured in Germany, this active PM300 lifecycle product is trusted worldwide for its dependable integration within the S7-1200 PLC ecosystem. Engineers benefit from fast installation, diagnostic support, and Siemens’ robust documentation, making the 6AG1221-1BH32-2XB0 an excellent choice for OEMs, plant managers, and industrial buyers. As part of the Siemens S7-1200 16DI Sink Source family, it delivers stable signal processing and rugged performance for engineers, integrators, and maintenance teams.
In real-world applications, the 6AG1221-1BH32-2XB0 is widely used in packaging machines, conveyors, HVAC systems, and utility equipment where accurate digital signal detection is critical. Its sink/source flexibility allows compatibility with a wide variety of input devices, making it a practical solution for both retrofits and new automation projects. Junior engineers appreciate its straightforward wiring structure, while experienced maintenance professionals rely on its rugged build for minimizing downtime. Within the Siemens S7-1200 16DI Sink Source product family, this model helps streamline digital I/O management while reducing engineering complexity.
Industrial buyers often compare the 6AG1221-1BH32-2XB0 manual, review the 6AG1221-1BH32-2XB0 datasheet, check the 6AG1221-1BH32-2XB0 weight, or evaluate the 6AG1221-1BH32-2XB0 price before finalizing procurement. Alternate references like 6AG1221 1BH32 2XB0 and 6ag12211bh322xb0 are also commonly used in ERP systems and supplier catalogs, pointing to the same trusted unit. By combining durability, compact size, and Siemens’ global support, the Siemens S7-1200 16DI Sink Source 6AG1221-1BH32-2XB0 continues to stand out as a proven solution for reliable automation across industries.




