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The Siemens 6ES5 455-7LA11 is a high-density digital output module designed for the Simatic S5-115 controller series. This module serves as a critical interface between the central processing unit and industrial field devices, providing 16 discrete output channels rated for 48/115 VAC operation. It is engineered for demanding industrial environments, including power generation, chemical processing, and large-scale manufacturing, where reliable switching of AC-driven contactors, solenoids, or signal lamps is required. By ensuring robust signal isolation, this module helps maintain system integrity and reduces the risk of erratic behavior in legacy control architectures.
This module is typically deployed in legacy automation systems for controlling high-voltage AC field devices. Common applications include the operation of motor starters, solenoid valves, industrial relays, and visual status indicators within S5-115 PLC racks.
| Model | 6ES5 455-7LA11 |
| Series | Simatic S5-115 |
| Number of Outputs | 16 |
| Output Voltage | 48 to 115 VAC |
| Max Load Current | 1 Amp per channel |
| Internal Logic Supply | 24 VDC |
| Operating Temperature | 0 to 60 degC |
| Isolation | Optically isolated |
The 6ES5 455-7LA11 is specifically designed for the S5-115 series. Compatibility with other S5 series racks should be verified against the specific backplane and power supply requirements of those systems.
Yes, the module requires an external AC power source for the output channels (48/115 VAC), while the internal logic is powered by the 24 VDC supply from the S5 rack backplane.