Siemens 6ES7400-2JA00-0AA0 S7-400 UR2-H 18-Slot Rack

Manufacturer: Siemens
Product No.: 6ES7400-2JA00-0AA0
Condition:1000 in stock
Product Type: Racks & Enclosures
Product Origin: 4011209281059
Payment: T/T, Western Union
Weight: 1000g
Shipping port: Xiamen
Warranty: 12 months

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Siemens 6ES7400-2JA00-0AA0 Universal Rack UR2-H

18-Slot High-Performance Rack for SIMATIC S7-400 PLC Systems

The Siemens 6ES7400-2JA00-0AA0 is a robust, 18-slot universal rack (UR2-H) engineered for demanding industrial automation applications. This rack provides the structural foundation for building scalable, high-availability S7-400 control systems with superior EMC performance and flexible configuration options.

🏗️ Why Choose the UR2-H Rack?

The S7-400 UR2-H rack is the gold standard for mission-critical automation systems:

✅ 18-Slot Capacity – Maximum module density for complex control applications
✅ Hot-Swap Capability – Replace modules without system shutdown (with redundant power)
✅ Superior EMC Design – Integrated shielding for harsh industrial environments
✅ Modular Expansion – Connect up to 21 racks for massive I/O capacity
✅ Proven Reliability – Deployed in power plants, refineries, and critical infrastructure worldwide
✅ Future-Proof Investment – Compatible with latest S7-400H redundant systems

📐 Technical Specifications

Order Number	6ES7400-2JA00-0AA0
Product Family	SIMATIC S7-400
Rack Type	UR2-H (Universal Rack, High-Performance)
Slot Count	18 slots (numbered 1-18)
Rack Length	2000mm (78.7 inches)
Mounting Type	19-inch cabinet mounting or wall mounting
Backplane Bus	S7-400 high-speed backplane (up to 12 Mbps)
Power Supply Slots	Slots 1-2 (redundant power configuration supported)
CPU Slot	Slot 3 (fixed position for S7-400 CPUs)
I/O Module Slots	Slots 4-18 (15 slots for I/O, communication, function modules)
Max Module Width	25mm to 100mm (varies by module type)
Grounding System	Integrated grounding bar with 360° shield connection
EMC Compliance	CE, FCC Class A, EN 61000-6-2/4
Operating Temp	0°C to +60°C (horizontal mounting) 0°C to +40°C (vertical mounting)
Storage Temp	-40°C to +70°C
Relative Humidity	5% to 95% (non-condensing)
Vibration Resistance	IEC 60068-2-6 (10-58 Hz, 0.15mm amplitude)
Shock Resistance	IEC 60068-2-27 (15g, 11ms half-sine)
Protection Rating	IP20 (front panel)
Material	Aluminum profile with steel mounting brackets
Weight	Approx. 8.5 kg (empty rack)
Certifications	UL 508, cULus, FM, ATEX Zone 2, IECEx, GL, DNV
MTBF	>200,000 hours (proven in field installations)

🔧 System Architecture & Configuration

Slot Assignment Rules

Slot Number	Module Type	Notes
1-2	Power Supply (PS 405, PS 407)	Slot 1 mandatory, Slot 2 optional for redundancy
3	CPU (CPU 412, 414, 416, 417)	Fixed position, cannot be changed
4-18	I/O, Communication, Function Modules	Flexible assignment based on application needs

Expansion Capabilities

Central Rack: This UR2-H rack serves as the central controller rack
Expansion Racks: Connect up to 21 expansion racks via ER1/ER2 racks and interface modules
Total System Capacity: Up to 396 slots (18 slots × 22 racks) for massive I/O requirements
Distributed I/O: Combine with Profibus DP or Profinet IO for unlimited expansion

Redundancy Options

Redundant Power: Install two PS 407 power supplies in Slots 1-2
Redundant CPUs: Use S7-400H CPUs (CPU 414H, 416H, 417H) for fault-tolerant control
Redundant Communication: Dual CP modules for network redundancy

🏭 Industry Applications

⚡ Power Generation & Distribution

Challenge: Nuclear power plant requires 24/7 uptime with zero tolerance for control system failures.

Solution: Deploy S7-400H redundant CPUs in UR2-H racks with dual power supplies and fiber-optic communication rings.

Result: 99.999% availability, seamless failover during maintenance, compliance with IEC 61513 safety standards.

🛢️ Oil & Gas Refining

Challenge: Offshore platform needs explosion-proof control system for 200+ I/O points in hazardous areas.

Solution: UR2-H rack with ATEX-certified modules, remote I/O via Profibus DP, and intrinsically safe barriers.

Result: Safe operation in Zone 2 environments, reduced wiring costs, modular expansion for new wells.

🚗 Automotive Manufacturing

Challenge: Body-in-white welding line requires synchronized control of 48 robots with microsecond precision.

Solution: Multiple UR2-H racks networked via Profinet IRT, high-speed I/O modules, and motion control function modules.

Result: Deterministic cycle times, easy integration with Siemens Sinumerik CNC systems, scalable for new production lines.

💊 Pharmaceutical Production

Challenge: FDA-regulated batch processing requires full audit trails and 21 CFR Part 11 compliance.

Solution: S7-400 with UR2-H rack, integrated SCADA via WinCC, and electronic batch records.

Result: Complete traceability, validated system documentation, seamless integration with MES/ERP systems.

🛠️ Installation & Commissioning

Pre-Installation Checklist

✓ Verify cabinet dimensions (minimum 2100mm width for 2000mm rack)
✓ Ensure adequate ventilation (50mm clearance above/below rack)
✓ Confirm power supply capacity (calculate total module current draw)
✓ Prepare grounding infrastructure (low-impedance ground connection required)
✓ Review EMC guidelines (separate signal and power cable routing)

Step-by-Step Installation

Mechanical Mounting
- Install mounting brackets in 19-inch cabinet or on wall
- Secure rack using M6 screws (torque to 4-5 Nm)
- Verify rack is level using spirit level (critical for module seating)
Grounding Connection
- Connect grounding bar to cabinet ground using 10mm² copper cable
- Ensure <0.1Ω resistance between rack and ground point
- Install cable shields to 360° shield clamps on rack
Module Installation
- Install power supply in Slot 1 (and Slot 2 if redundant)
- Install CPU in Slot 3 (align guide rails carefully)
- Install I/O and communication modules in Slots 4-18
- Engage locking mechanisms on all modules
Backplane Verification
- Visually inspect backplane connectors for damage
- Ensure all modules are fully seated (no gaps)
- Check that module status LEDs are visible
Power-Up Sequence
- Energize power supply (verify green PWR LED)
- CPU should boot and enter RUN or STOP mode
- Check SF (System Fault) LED on CPU and modules
Software Configuration
- Use STEP 7 or TIA Portal to configure hardware
- Assign I/O addresses to modules
- Configure communication parameters (Profibus, Profinet, Ethernet)
- Download configuration to CPU

⚠️ Common Installation Mistakes

❌ Insufficient cabinet depth (rack requires 250mm depth minimum)
❌ Poor grounding (causes EMI issues and intermittent faults)
❌ Mixing S7-300 and S7-400 modules (incompatible backplanes)
❌ Overloading power supply (calculate total current before installation)
❌ Incorrect slot assignment (CPU must be in Slot 3)

📊 S7-400 Rack Comparison

Rack Model	Slots	Length	Best For	Order Number
UR1	9 slots	530mm	Compact systems, test benches	6ES7400-1JA01-0AA0
UR2	18 slots	2000mm	Standard installations	6ES7400-1JA11-0AA0
UR2-H (This Product)	18 slots	2000mm	High-performance, redundant systems	6ES7400-2JA00-0AA0
CR2	18 slots	2000mm	Central rack for multi-rack systems	6ES7400-1TA01-0AA0
ER1	9 slots	530mm	Expansion racks (compact)	6ES7400-1TA11-0AA0
ER2	18 slots	2000mm	Expansion racks (full-size)	6ES7400-1TA21-0AA0

💡 Selection Guide: Choose UR2-H for new installations requiring maximum flexibility, hot-swap capability, and future redundancy options. For basic applications without redundancy, standard UR2 is more cost-effective.

🔌 Compatible Components

Power Supplies

PS 405 (5A, 10A, 20A variants) – Standard power supplies
PS 407 (10A, 20A, 40A variants) – High-performance with redundancy support

CPUs

CPU 412-1, 412-2 – Entry-level S7-400 processors
CPU 414-2, 414-3 – Mid-range with integrated Profibus/Ethernet
CPU 416-2, 416-3 – High-performance for complex applications
CPU 417-4 – Maximum performance with 16 MB memory
CPU 414H, 416H, 417H – Redundant CPUs for fault-tolerant systems

I/O Modules

SM 421/422 – Digital input/output modules
SM 431/432 – Analog input/output modules
SM 450/451 – Positioning and counting modules

Communication Processors

CP 443-1 – Industrial Ethernet (Profinet, TCP/IP)
CP 443-5 – Profibus DP master/slave
CP 444-1 – Serial communication (RS232/RS485)

🛡️ Authenticity & Quality Assurance

⚠️ Counterfeit Rack Risks

Non-genuine S7-400 racks can cause catastrophic failures:

🔥 Backplane failures leading to system crashes
⚡ Poor grounding causing EMI-induced faults
💥 Structural weakness under module weight
🚫 Voided Siemens warranty on all installed modules
⚖️ Liability issues in safety-critical applications

✅ Industrial Control Hub Guarantee

🔒 100% Genuine Siemens – Factory-sealed packaging with holographic labels
📜 Full Traceability – Serial numbers and manufacturing certificates
🌍 Authorized Distributor – Verify at Siemens Industry Mall
🛡️ 24-Month Warranty – Manufacturer warranty honored globally
📦 Protective Packaging – Custom crating for damage-free shipping
📞 Technical Support – Pre-sales consultation and post-installation assistance

📦 Package Contents

1× Siemens 6ES7400-2JA00-0AA0 UR2-H rack (2000mm, 18 slots)
Integrated backplane bus with 18 module connectors
Grounding bar with shield connection clamps
Mounting brackets and hardware kit
Product documentation and certificate of conformity

Note: Modules, power supplies, and CPUs are sold separately. This is the rack structure only.

🤝 Technical Support & Services

Industrial Control Hub provides comprehensive support:

📧 System Design Consultation – Email us your I/O list for rack sizing recommendations
📚 Documentation Library – Access Siemens manuals, CAD drawings, and installation guides
🎓 Training Resources – Video tutorials on S7-400 system configuration
🔧 Installation Assistance – Remote support during commissioning
🔄 30-Day Returns – Hassle-free returns if unused and in original packaging

❓ Frequently Asked Questions

Q: What's the difference between UR2 and UR2-H racks?
A: UR2-H has enhanced EMC shielding, hot-swap capability, and support for redundant power supplies. UR2 is a basic version without these features.

Q: Can I use S7-300 modules in this rack?
A: No, S7-300 and S7-400 modules are not interchangeable. They have different backplane connectors and voltage requirements.

Q: How many expansion racks can I connect?
A: Up to 21 expansion racks (ER1 or ER2) can be connected to a central rack, for a total of 22 racks in one system.

Q: Do I need special tools for installation?
A: Basic tools required: screwdriver, torque wrench (4-5 Nm), spirit level, and multimeter for grounding verification.

Q: Is this rack suitable for outdoor installations?
A: No, IP20 rating is for indoor use only. For outdoor applications, install the rack inside a weatherproof enclosure (IP54 or higher).

Q: Can I hot-swap modules during operation?
A: Yes, with redundant power supplies and proper configuration, most modules can be replaced without shutting down the system.

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