Siemens 6ES7400-2JA10-0AA0 S7-400 UR2-H Dual 9-Slot Redundant Rack

Product Overview

The Siemens 6ES7400-2JA10-0AA0 is a high-performance SIMATIC S7-400 rack designed for complex automation architectures. This rugged UR2-H aluminum chassis features 18 total slots divided into two isolated segments. Engineers utilize this dual-segment layout to build high-availability, fault-tolerant configurations or split central and distributed I/O tasks. The separated backplane buses ensure maximum operational reliability for critical control applications.

Global PLC Spare HUB's Insight

From our technical perspective, the Siemens 6ES7400-2JA10-0AA0 provides an exceptionally stable backbone for critical automation infrastructure. The separated backplane architecture prevents localized module faults from disrupting the parallel segment. This structural isolation is critical for industries that cannot tolerate sudden system downtime. The lightweight aluminum construction ensures superior thermal dissipation compared to standard steel frames. This chassis optimizes signal integrity across high-density I/O configurations.

Technical Specifications

• Brand: Siemens
• Model: 6ES7400-2JA10-0AA0
• Product Series: SIMATIC S7-400
• Rack Type: UR2-H Central and Distributed
• Total Slots: 18 slots total
• Segment Configuration: 2 independent segments with 9 slots each
• Backplane Buses: Separated P-Bus and separated Communication Bus
• Chassis Material: High-grade aluminum profile
• Operating Temperature: 0 °C minimum to 60 °C maximum
• Storage Temperature: 0 °C minimum to 70 °C maximum
• Environmental Protection: High vibration and shock resistance for harsh industrial sites
• Electromagnetic Compatibility: Integrated shielding against high-frequency electrical interference
• Width: 482.5 mm
• Height: 290 mm
• Depth: 27.5 mm
• Net Weight: Approximately 3 kg

Equipment Compatibility

The Siemens 6ES7400-2JA10-0AA0 rack interfaces seamlessly with the following industrial automation hardware:

• Siemens SIMATIC S7-400 standard and redundant central processing units
• S7-400 power supply modules including PS 405 and PS 407 series
• S7-400 digital, analog, and specialized function I/O modules
• Communication processors such as CP 443-1 Ethernet and CP 443-5 Profibus modules
• Fault-tolerant S7-400H systems requiring physical hardware segmentation

Typical Application Scenarios

• Redundant power plant control systems requiring continuous operation
• Large-scale chemical processing plants utilizing segregated I/O networks
• Automotive manufacturing assembly lines with high-density distributed I/O nodes
• Critical oil and gas pipeline monitoring infrastructure
• Water and wastewater treatment facilities requiring decentralized hardware segmentation

Diagnostics & Fault Management

The UR2-H rack design facilitates aggressive diagnostics through its segmented backplane architecture. The separated communication bus isolates communication faults within a single segment. This physical separation prevents a localized module failure from crashing the entire network. LEDs on inserted CPUs indicate bus errors and segment-specific communication faults immediately. System engineers can pinpoint defective hardware without shutting down the healthy segment.

Installation & Maintenance Guide

• Mount the aluminum rack vertically or horizontally onto standard control cabinet panels.
• Ensure a clearance of 30 mm above and below the rack for optimal air circulation.
• Connect the main grounding bolt directly to the central protective earth bar.
• Slide modules firmly into designated slots until the top and bottom screws lock.
• Tighten all module retaining screws to secure electrical contact with the backplane bus.
• Disconnect the power supply before inserting or removing modules in standard configurations.

Selection & Purchasing Guide

• Verify your total slot requirements including space for redundant power supplies and communication modules.
• Choose this UR2-H dual-segment rack if your application requires redundant CPU operation.
• Select standard UR1 or UR2 racks for single, non-segmented automation architectures.
• Confirm cabinet depth clearances to accommodate the 27.5 mm rack plus extended module depths.
• Match your power supply selection with the specific segmented load requirements of each bus section.

Compliance & Certifications

• CE Mark compliance for European market accessibility
• UKCA Mark certification for United Kingdom regulatory standards
• UL Approval for United States industrial safety regulations
• FM Approval for hazardous location operational safety
• RCM (C-TICK) certification for Australian electromagnetic compatibility requirements
• KC Approval for South Korean electronic equipment safety
• EAC certification for Eurasian Customs Union compliance
• CCC certification for Chinese compulsory industrial safety standards

Shipping, Packaging & Warranty

• Shipping Methods: Express delivery via FedEx, UPS, and DHL worldwide networks
• Dispatch Timeframe: Dispatched within 24 to 48 hours from order confirmation
• Package Contents: One Siemens 6ES7400-2JA10-0AA0 aluminum rack with integrated grounding hardware
• Warranty Coverage: Comprehensive 12-month warranty protection against manufacturing defects

Frequently Asked Questions

Question: What is the main structural advantage of using the UR2-H rack over a standard UR2 rack?

Answer: The UR2-H rack divides its 18 slots into two completely independent, isolated 9-slot segments. This configuration allows you to run redundant systems or separate central and distributed tasks on a single physical chassis.

Question: Can I span a single non-redundant S7-400 CPU across both segments of this rack?

Answer: No, because the P-bus and communication bus are physically separated between slot 9 and slot 10. A standard CPU can only communicate with the modules residing within its own 9-slot segment.

Question: How should I configure grounding for this aluminum rack to prevent electromagnetic interference in high-noise environments?

Answer: Clean the contact surfaces of your cabinet panel to ensure direct metal-to-metal contact with the aluminum rack. Connect a low-impedance copper ground strap from the rack ground bolt to your central earth ground bus.

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