Product Overview
The Siemens 6ES7288-1SR20-0AA1 Compact CPU SR20 delivers a powerful and flexible control solution for small and mid-sized automation systems.
It integrates onboard digital I/O, built-in memory, and universal power supply options for simplified system design.
Moreover, this compact CPU supports 24 V DC inputs and 2A relay outputs, making it suitable for diverse industrial environments.
Engineered for reliability, the SR20 offers a cost-efficient alternative while maintaining Siemens’ proven quality and control performance.
Key Functional Benefits
The Compact CPU SR20 combines logic control, signal processing, and power management in a single compact form factor.
In addition, its robust AC/DC dual-voltage input ensures reliable operation in both legacy and modern installations.
Key advantages include:
- Integrated 12 digital inputs (24 V DC) and 8 relay outputs (2A)
- Wide input power range: 85–264 V AC / 77–138 V DC
- 20 KB user memory for program and data storage
- High-speed signal handling for time-critical automation processes
- Compact design enabling space-efficient control cabinet layouts
Therefore, it provides excellent scalability for distributed automation architectures.
Technical Specifications
| Parameter | Details |
|---|---|
| Model | Siemens 6ES7288-1SR20-0AA1 |
| Product Type | Compact CPU SR20 |
| Digital Inputs (DI) | 12 × 24 V DC |
| Digital Outputs (DQ) | 8 × Relay, 2A |
| Power Supply (AC) | 85–264 V, 47–63 Hz |
| Power Supply (DC) | 77–138 V |
| Memory Capacity | 20 KB (Program/Data) |
| Lifecycle Status | PM300 – Active Product |
| Compliance | RoHS (since 2021-06-04) |
| Country of Origin | China |
| Weight | 0.370 kg |
| Factory Lead Time | Approx. 10 days |
| Export Control | AL: N / ECCN: EAR99H |
| Commodity Code | 85371091 |
Furthermore, Siemens’ strict compliance with RoHS and REACH ensures that the module meets modern environmental and safety standards.
System Integration
The 6ES7288-1SR20-0AA1 seamlessly integrates into SIMATIC S7-1200 and distributed automation networks.
It supports local I/O expansion and flexible communication interfaces, ideal for compact machine control systems.
For instance, it can control conveyor modules, packaging machinery, or small process automation units.
In addition, the onboard relay outputs simplify wiring, reducing installation time and cost.
Therefore, it’s a practical choice for engineers needing reliable control in limited cabinet space.
Details
| Weight | 0.37 kg |
|---|
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