Siemens 6GK5534-3TR00-2AR3 SCALANCE XR522-12 Layer 3 Switch, 24V DC, 8x SFP+ 10G

The Siemens SCALANCE XR522-12 (6GK5534-3TR00-2AR3) is a 19-inch rack, Layer 3 managed Ethernet switch with 20x 10/100/1000 Mbit/s RJ45 ports, 2x combo 1G/2.5G/5G/10G RJ45 ports, 4x SFP ports, and 8x SFP+ ports for 10 Gbit/s uplinks. It runs from a single 24V DC supply and integrates a redundancy manager for ring topologies.

Technical Specifications

Certifications & Standards

• CE
• UKCA
• KC
• RCM
• ATEX
• UKEX
• IECEx
• UL HazLoc
• CCC
• FM

Selection Notes

The 2AR3 variant is the DC-only version: a single 24V DC input with a spare terminal block for a second, redundant 24V feed - the option to pick when the cabinet already runs on a 24V DC bus. Pick the 3AR3 sibling instead for AC mains supply, or 4AR3 for a factory-fitted redundant AC pair. Against the larger XR526-8, the XR522-12 trades 4 RJ45 ports for 4 extra SFP slots, which suits sites standardizing on fiber for a subset of access links.

Applications

The mixed RJ45/SFP/SFP+ port set fits distribution cabinets that combine copper drops to local PROFINET devices with fiber runs to remote panels, using MRP or HSR/PRP for ring redundancy across the plant backbone.