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The Siemens 6ES5 490-7LB21 is a 46-pin front connector engineered for the Simatic S5-115U modular automation system. This interface component serves as the primary physical connection point between field-level instrumentation wiring and the PLC I/O modules. By providing a standardized, secure termination point, it facilitates rapid installation, efficient maintenance, and reliable signal transmission in industrial control environments, including power plant instrumentation and automated manufacturing.
This connector is specifically designed for use with the Siemens Simatic S5-115U PLC series. It is widely employed in process control systems, automated production lines, and industrial machinery where stable, long-term electrical connectivity is required for I/O signal processing.
| Model | 6ES5 490-7LB21 |
| Brand | Siemens Simatic S5 |
| Pin Count | 46-pin |
| Termination Type | Screw terminal |
| Operating Temperature | 0 to 60 degC |
| Power Consumption | Passive (none) |
| Compatibility | Siemens Simatic S5-115U series |
The 6ES5 490-7LB21 is specifically designed for the Simatic S5-115U series. Please verify your specific I/O module part number to ensure mechanical and electrical compatibility.
No, this is a passive interface component used for routing signals between field wiring and the PLC module; it does not consume electrical power.