The ABB SC520 3BSE003816R1 is a submodule carrier that includes a local CPU.

It is used in the ABB AC400 control system, which is a distributed control system (DCS) for industrial automation applications. The SC520 submodule carrier provides a way to connect additional modules to the AC400 system, such as input/output (I/O) modules, communication modules, and other submodule carriers.

• Increases the processing power of the AC400 system
• Provides a way to connect additional modules to the AC400 system
• Improves the communication capabilities of the AC400 system
• Is robust and can withstand harsh industrial environments

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