SIEMENS SIMATIC S7-400H
6ES7400-2JA00-0AA0 UR2-H Rack
UR2-H rack with two nine-slot segments for central and distributed S7-400H configurations
Exact order code
6ES7400-2JA00-0AA0
Active Product
Siemens 6ES7400-2JA00-0AA0 is the SIMATIC S7-400H UR2-H rack with 18 slots arranged as two independent nine-slot segments. Siemens specifies the exact article for central and distributed configurations.
The rack forms the mechanical and backplane foundation for an S7-400H station. Procurement must align the complete rack code with the selected CPUs, power-supply modules, synchronization components, cabinet arrangement and expansion concept.
| Catalog item |
Verified Siemens information |
| Manufacturer |
Siemens |
| Complete part number |
6ES7400-2JA00-0AA0 |
| Product family |
SIMATIC S7-400H |
| Official product lifecycle |
Active Product |
| Configuration identity |
UR2-H, 18 slots arranged as 2 × 9 |
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Verified Technical Data
| Parameter |
Official value |
| Product designation |
SIMATIC S7-400H UR2-H rack |
| Rack arrangement |
18 slots; 2 segments with 9 slots each |
| Installation role |
Central and distributed configurations |
| System family |
SIMATIC S7-400 / S7-400H |
| Mechanical function |
Module mounting and backplane-bus connection |
| Packaging dimensions |
58.7 × 30.0 × 4.8 cm (L × W × H) |
| Net weight |
4.557 kg |
| Country of origin |
Germany |
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System Fit and Applications
Fault-tolerant central stations
Use the two nine-slot segments when both S7-400H subsystems are installed in one rack arrangement.
Distributed expansion layouts
Apply the rack only within a documented S7-400 or S7-400H central/distributed architecture.
Cabinet modernization
Retain the exact rack identity when replacing the mechanical and backplane base of an existing station.
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Compatibility and Procurement Checks
| Check |
Procurement requirement |
| 1. Complete article code |
Confirm 6ES7400-2JA00-0AA0; aluminum and non-H rack variants use different order numbers. |
| 2. Slot plan |
Verify two nine-slot segments, module widths, CPU positions and required free slots. |
| 3. System architecture |
Match S7-400H CPUs, power supplies, synchronization components and expansion interfaces. |
| 4. Backplane requirements |
Confirm P-bus and C-bus needs for every planned module. |
| 5. Cabinet fit |
Check mounting position, cabinet width, protective-earth connection and service clearance. |
| 6. Existing configuration |
Compare the installed rack article, module order and STEP 7 hardware configuration before replacement. |
Active Product
Siemens SiePortal currently lists the exact 6ES7400-2JA00-0AA0 article as Active Product. Recheck lifecycle and availability against this complete code when the order is placed.
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Frequently Asked Questions
What is Siemens 6ES7400-2JA00-0AA0?
It is a SIMATIC S7-400H UR2-H rack with 18 slots divided into two nine-slot segments.
Can it be used as a central or distributed rack?
Yes. Siemens describes this exact article for central and distributed configurations.
Is it the aluminum UR2-H version?
No. The aluminum UR2-H variant uses a different order number, so the complete code must be matched.
What must be checked for compatibility?
Confirm the CPU pair, power supplies, synchronization components, backplane requirements, slot plan and cabinet fit.
What should be supplied for a quotation?
Provide the complete order code, quantity, destination and the installed S7-400H hardware configuration.
Request a verified offer for 6ES7400-2JA00-0AA0
Send the complete order code, quantity, destination and installed-system details for stock, compatibility, warranty and global-delivery review.
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