Siemens 6ES7326-1RF01-0AB0 Programmable Logic Controller
The Siemens 6ES7326-1RF01-0AB0 Programmable Logic Controller provides 8 NAMUR digital inputs, SIL3 safety performance, and 24 V DC operation. It supports two-wire proximity switches with a 1.2–3 ms response time and typical 4.5 W power loss. The module uses a 40-pin connector and measures 80 mm × 125 mm × 120 mm with a weight of about 0.56 kg. This unit aligns with Siemens devices, functions in the Siemens PLC category, and belongs to the Simatic S7-300 series.
| Brand | Siemens |
| Product Type | Programmable Logic Controller (PLC) |
| Product | 6ES7326-1RF01-0AB0 |
6ES7326-1RF01-0AB0 Siemens SM 326 Fail-safe NAMUR Input – Technical Specifications
| Specification | Value |
|---|---|
| Product Description | SIMATIC S7, Digital input SM 326, 8 DI; 24 V DC, NAMUR, fail-safe NAMUR input for SIMATIC S7 F-systems, up to Category 4 (EN 954-1)/ SIL3 (IEC61508)/PLE (ISO13849), 1x 40-pole |
| Product family | SM 326 F-digital input modules - Safety Integrated |
| Product Lifecycle (PLM) | PM400:Phase Out Started |
| Net Weight (kg) | 0,559 Kg |
| Packaging Dimension | 13,10 x 15,30 x 8,90 |
| Package size unit of measure | CM |
| Country of origin | Germany |
The Siemens 6ES7326-1RF01-0AB0 Programmable Logic Controller is a safety-rated SM 326 module designed for critical digital input monitoring. It includes 8 NAMUR DI, operates at 24 V DC, and supports SIL3, Category 4, and PLE functional safety levels. As part of the S7-300 I/O Module series, this Siemens PLC ensures dependable integration in SIMATIC S7 F-systems requiring reliable fail-safe input evaluation.
The Siemens 6ES7326-1RF01-0AB0 is widely used in conveyors, packaging cells, robotic assembly lines, and process-automation environments where safety input verification is essential. Its NAMUR input design ensures stable, low-current signal detection, while diagnostic functions support continuous system health monitoring. The robust build makes it suitable for plants needing error-tolerant and electrically secure digital input processing.
The Siemens 6ES7326-1RF01-0AB0 Programmable Logic Controller combines NAMUR DI capability, 24 V DC operation, and SIL3/PLE compliance to deliver reliable safety-input performance. Siemens ensures dependable field integration through SM 326 engineering and compatibility with S7 F-systems. As a member of the S7-300 I/O Module family, it remains a trusted option for engineers implementing precise, safety-focused digital input handling in industrial automation.
