ABB RB520 3BSE003528R1 Industrial Control Module
The ABB RB520 is a robust remote I/O module designed for harsh industrial environments. Key specs include: 16 digital inputs, 8 digital outputs, operating temperature range of -40°C to +70°C, and IP65 protection. Typical applications include oil & gas, mining, and water treatment plants where reliable data acquisition is critical. Compared to the ABB NBIO-31, the RB520 offers superior environmental resistance but fewer I/O points. The ABB CI855, on the other hand, provides more advanced communication options but is less rugged.
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