Siemens 6ES7131-4RD02-0AB0 SIMATIC ET 200S Digital Input Module
The Siemens 6ES7131-4RD02-0AB0 is a high-performance, compact digital input electronic module designed for the SIMATIC ET 200S distributed I/O system. Featuring 4 Digital Inputs (4DI) optimized for NAMUR sensor connectivity, this module provides precise, reliable signal acquisition from field sensors in demanding industrial environments. Its ultra-slim 15mm form factor ensures maximum space-saving on standard DIN rails. Engineered with advanced asset protection, it features built-in diagnostics for wire-break and short-circuit detection, making it an essential component for system uptime, safe machinery operation, and legacy automation maintenance.
| Specifications | |
| Product Make | SIEMENS |
| Product Series | SIMATIC ET 200S |
| Model / Part Number | 6ES7131-4RD02-0AB0 |
| Module Type | Digital Input (DI) Electronic Module |
| Number of Inputs | Â 4 Inputs |
| Input Sensor Type | Â NAMUR / DC Sensors |
| Encoder Supply Voltage | 8.2 V DC |
| Total Current Output | 45 mA rated value |
| Fault Thresholds | Wire break (< 0.35 mA); Short circuit (> 7 mA) |
| Power Loss / Consumption | Approx. 1.6 W |
| Condition | GOOD |
| Warranty | 1 YEAR |
| Country of Origin | Â Germany |
| Protection Degree | IP20 |
| Length | 52 mm |
| Width | 15 mm |
| Height | 81 mm |
| Weight | 35 g |









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