Siemens 6GK5124-0BA00-2AB2 SCALANCE XB124 24-Port 10/100 Mbit/s Unmanaged Industrial Ethernet Switch

Siemens 6GK5124-0BA00-2AB2 is a SCALANCE XB124 unmanaged industrial Ethernet switch with 24 RJ45 ports at 10/100 Mbit/s, a redundant 24 V AC/DC power input, and PROFINET conformance class A. It targets larger star and line topologies than the smaller-port model in the same switch family, with the same LED diagnostics and plug-and-play operation.

Technical Specifications

Certifications & Standards

• CE
• cULus
• KC
• RCM
• ATEX
• UKEX
• IECEx
• ULhazloc
• CCC hazardous zone
• FM registration

Selection Notes

The XB124 shares its electrical design and certification set with the smaller-port model in this switch family but adds 8 more RJ45 ports, for 24 total, at the cost of higher rated power loss (7.2 W vs. 4.8 W) and a wider 120 mm housing. Pick this 24-port variant over the smaller-port model when the cell has more than 16 connected devices and cabinet width allows the larger footprint; a lower MTBF figure at this port count (57 vs. 80 years) is a modest trade-off worth factoring into maintenance planning for large installed bases.

Applications

Larger PROFINET/Ethernet star topologies needing more than 16 device connections, machine-level cell networks consolidating multiple production lines onto one unmanaged switch, and hazardous-area installations rated for Zone 2/22 (ATEX/IECEx/CCC-Ex).