Siemens 6ES7400-1TA01-0AA0 SIMATIC S7-400 UR1 18-Slot Redundant-PS Rack

The Siemens 6ES7400-1TA01-0AA0 is a SIMATIC S7-400 UR1 rack with 18 slots for central or distributed configurations, built to accept two redundant power supplies. It carries both the communication bus and the P bus across all slots, operates up to 60 degrees C ambient, and holds CE, UKCA, UL, and FM approvals for global installation.

Technical Specifications

Certifications & Standards

• CE
• UKCA
• UL
• FM
• RCM
• KC
• EAC
• CCC

Selection Notes

The UR1's 18 slots and support for two redundant power supplies make it the base rack for S7-400 configurations that need power redundancy without moving to a segmented backplane. Because it carries the full P bus alongside the communication bus across all 18 slots, any slot can host signal, communication, or CPU modules without a fixed zoning restriction. At 482.5 mm wide it fills a standard 19-inch enclosure width, and the shallow 27.5 mm rack depth means the modules plugged into it, not the rack itself, set the required cabinet depth.