Siemens 6ES7400-1JA11-0AA0 SIMATIC S7-400 UR2 Aluminum Rack
01Overview
Siemens 6ES7400-1JA11-0AA0 is the aluminum UR2 universal rack for central or distributed SIMATIC S7-400 stations. It provides nine module slots and carries both the communication bus and the P bus across the backplane. The rack can accept two redundant power supplies, making it suitable for engineered S7-400 configurations that require a compact nine-slot mechanical and electrical platform.
02Specs
| Manufacturer | Siemens |
|---|---|
| Article Number | 6ES7400-1JA11-0AA0 |
| Product Designation | UR2 universal rack |
| Automation System | SIMATIC S7-400 |
| Rack Material | Aluminum profile |
| Application | Central and distributed configurations |
| Module Slots | 9 |
| Redundant Power-Supply Positions | Up to 2 |
| Communication Bus | Integrated |
| P Bus | Integrated |
| Operating Temperature | 0 to 60 degrees C |
| Storage and Transport Temperature | 0 to 70 degrees C |
| Commercial Status | Active product |
03Features
Key Functions
- Nine S7-400 slots support a compact central or expansion-station layout.
- Integrated communication-bus and P-bus paths distribute system signals through the rack backplane.
- Two power-supply positions allow a redundant supply arrangement when compatible PS 407 modules and the full station design are used.
- The aluminum profile provides the mechanical carrier and defined mounting geometry for S7-400 modules.
- The rack can be applied in either central or distributed S7-400 configurations.
- Front-accessible module installation supports structured cabinet assembly and service work.
Product Identity
- Manufacturer: Siemens
- Model: 6ES7400-1JA11-0AA0
- Product Type: SIMATIC S7-400 UR2 universal rack
- Status: Active product
04Applications
- Central racks for compact SIMATIC S7-400 control stations.
- Distributed or expansion racks in engineered S7-400 architectures.
- Process and manufacturing control cabinets that require nine module positions.
- Redundant power-supply arrangements using supported S7-400 power modules.
- Maintenance replacement of an existing UR2 rack with the same article and station design.
- System extensions where the communication-bus and P-bus requirements match the UR2 backplane.
05Lifecycle
- Siemens identifies the exact article as an active product.
- Confirm the rack article number, slot count and backplane requirement before ordering.
- Record the complete module sequence, rack address, interface-module arrangement and power design before replacement.
- A rack exchange requires full isolation of the station and careful preservation of all connectors and module positions.
- After installation, inspect the backplane connectors and verify every module, bus connection, power supply and diagnostic state.
06FAQ
What is Siemens 6ES7400-1JA11-0AA0?
It is the nine-slot UR2 aluminum universal rack for central or distributed SIMATIC S7-400 stations.
How many module slots are available?
The UR2 rack provides nine S7-400 module slots.
Can redundant power supplies be installed?
Yes. The rack provides positions for up to two redundant power supplies when the complete station is designed with supported modules.
Which backplane buses are included?
The rack includes both the S7-400 communication bus and the P bus.
Can it be used as a distributed rack?
Yes. Siemens specifies the UR2 for central and distributed applications, subject to the appropriate interface and station configuration.
What should be checked after a rack replacement?
Verify the module sequence, connectors, supply arrangement, rack communication, station diagnostics and every dependent I/O path.
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