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6ES7221-3AD30-0XB0 - Siemens PLC S7-1200 4 DI 5V Input
The 6ES7221-3AD30-0XB0 is a compact digital input module from the Siemens PLC S7-1200 series, offering 4 DI (5V DC) high-speed sourcing inputs at up to 200 kHz.

| Brand | Siemens |
| Product Type | PLC - Programmable logic Controller |
| Series | Simatic S7-1200 |
| SKU / MPN | 6ES7221-3AD30-0XB0 |
Siemens PLC S7-1200 4 DI 5V Input 6ES7221-3AD30-0XB0 Technical Specifications:
| Specification | Value |
|---|---|
| Product Description | SIMATIC S7-1200, Digital input SB 1221, 4 DI, 5V DC 200kHz, Sourcing input |
| Product Family | SB 1221 digital input modules |
| Product Lifecycle (PLM) | PM300:Active Product |
| Net Weight (kg) | 0,030 Kg |
| Packaging Dimension | 4,70 x 8,00 x 2,70 |
| Package Size Unit of Measure | CM |
| Country of Origin | China |
The Siemens 6ES7221-3AD30-0XB0 is a high-performance S7-1200 PLC digital input module (SB 1221) designed for industrial automation applications requiring precise 5V DC signal processing. This module features 4 digital inputs (DI) operating at 5V DC with a 200 kHz response rate, making it suitable for high-speed control tasks, logic monitoring, and integration with sensors and actuators in compact control systems. Its sourcing input configuration ensures reliable signal acquisition and consistent performance in demanding industrial environments.
Belonging to the SB 1221 digital input module family and classified under the PM300: Active Product Lifecycle (PLM), the 6ES7221-3AD30-0XB0 offers long-term availability, stability, and performance consistency. Weighing just 0.030 kg and packaged compactly at 4.70 × 8.00 × 2.70 cm, it is easy to integrate into control panels, machinery, and automation setups, ensuring space optimization without compromising functionality. Manufactured in China, Siemens guarantees stringent quality standards and reliable operation across a variety of industrial settings.
Engineered for seamless compatibility with the S7-1200 PLC family, this module allows engineers to implement scalable digital input solutions in factory automation, process monitoring, and material handling systems. Its compact form factor and efficient design reduce installation complexity, while the high-speed 200 kHz input frequency ensures accurate and fast signal processing. The module supports long-term operational uptime, enabling efficient system expansion and upgrade without interruptions.
The Siemens 6ES7221-3AD30-0XB0 is ideal for engineers seeking reliable, precise, and compact digital input modules for high-speed industrial automation. Its combination of lightweight design, robust signal handling, and seamless integration with the S7-1200 ecosystem ensures efficient monitoring and control of industrial processes. This active product supports both new automation installations and retrofitting projects with minimal effort.
IndMALL provides unmatched pricing, technical guidance, and dedicated support, ensuring smooth implementation of digital input automation modules in your industrial processes. Trust our expertise for reliable Siemens solutions and seamless integration into your operations. Secure your Siemens S7-1200 4 DI 5V Input 6ES7221-3AD30-0XB0 today with a competitive quote.



