Here’s a concise breakdown of the X20BB80 bus base module from B&R Industrial Automation:

• Function: Serves as a bus base for bus controllers, fieldbus interfaces, and power supply modules.

• Power Consumption: 0.25 W (bus) and additional dissipation depending on actuators.

• Certifications: CE, UKCA, ATEX (Zone 2), UL, DNV, CCS, LR, ABS, BV, and more.

• I/O Power Supply: Nominal voltage of 24 VDC, with a permissible contact load of 10 A.

• Operating Conditions:

  • Mounting Orientation: Supports horizontal and vertical installation.

  • Altitude: No limitation up to 2000 m, beyond which ambient temperature reduces by 0.5°C per 100 m.

  • Protection: IP20 rating per EN 60529.

• Environmental Conditions:

  • Temperature:

    • Operation: -25°C to 60°C (horizontal), -25°C to 50°C (vertical).

    • Storage & Transport: -40°C to 85°C.

  • Humidity: 5% to 95%, non-condensing.

• Mechanical Properties:

  • Pitch: 37.5 +0.2 mm.

  • Includes: Left and right X20 end cover plates.