Product Short Description
Product Brief Introduction
This product integrates a high-reliability AC/DC power supply unit and standard Tricon extended I/O rack backplane into one complete assembly. It converts industrial AC input power into stable isolated DC power to supply all Tricon digital input, digital output, analog input, analog output and communication modules inside the extended RXM chassis.
Description
Basic Product Specifications
- Manufacturer: Triconex (Schneider Electric Industrial Automation)
- Product Series: Tricon TMR Safety Instrumented System
- Product Type: Integrated Extended Rack Power Supply + RXM I/O Backplane Assembly
- System Architecture: Full TMR Triple Modular Redundancy Power Architecture
- Compatible Equipment: All Tricon series I/O modules, remote RXM extended chassis
- Installation Mode: Standard cabinet mounted fixed installation, rack plug-in module slots
- Origin: USA
- Assembly Part Number: 7400127-610 Rev.B1
- Basic Rack Model: 2553 / 2652
Electrical Technical Specifications
Input Specifications
- Standard AC Input Voltage: 230 VAC Single Phase
- AC Input Voltage Range: 187 VAC ~ 264 VAC
- AC Input Frequency: 47 Hz ~ 63 Hz
- Rated AC Input Current: 2 A
- Maximum Input Surge Current: 30 A
- Alternative DC Input Version: 115 VAC / 120 VDC / 24 VAC/DC compatible
Output Specifications
- Main Rated DC Output Voltage: 24 VDC System Field Power
- Auxiliary Logic Output Voltage: 5 VDC Backplane Logic Power
- Rated Total Output Current: 8 A (24 VDC)
- Output Voltage Ripple: <1% Peak-to-Peak
- Output Regulation Accuracy: ±2% Full Scale
- Functional Isolation Voltage (Input to Output): 2500 VAC
- Channel-to-Chassis Isolation Voltage: 250 VDC
Protection & Electrical Parameters
- Built-in Full Protection: Overvoltage Protection, Overcurrent Protection, Short-Circuit Protection, Reverse Polarity Protection, Surge Protection
- Surge Withstand Voltage: 1500 V
- Power Efficiency: >85% Full Load
- MTBF (Mean Time Between Failures): ≥800,000 Hours
Environmental Specifications
- Operating Ambient Temperature: 0 °C ~ +60 °C (+140 °F)
- Storage Temperature: -40 °C ~ +85 °C
- Operating Relative Humidity: 5% ~ 95% Non-Condensing
- Anti-Vibration Performance: Compliant with IEC 60068-2-6 Industrial Standard
- Anti-Shock Performance: Compliant with IEC 60068-2-27 Industrial Standard
- Safety Certification: IEC 61508 SIL 3 Safety Certification, CE Certified, UL Certified
Mechanical Specifications
- Assembly Dimensions: Standard Tricon RXM extended rack size
- Net Weight: 34.7 kg ~ 37.3 kg
- Shell Structure: Industrial heavy-duty anti-corrosion steel enclosure
- Backplane Slots: Standard multiple Tricon module plug-in slots
- Terminal Configuration: Independent anti-loosening high-current power wiring terminals
- Mounting: Standard DIN rail / cabinet fixed mounting
Functional Characteristics
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Integrated Power Supply + Backplane Design
Integrates AC/DC power converter and RXM extended I/O backplane into one unit, eliminates separate power supply and rack wiring, simplifies system installation and wiring layout.
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Full TMR Redundant Power Architecture
Adopts triple independent redundant power conversion channels with 2oo3 voting logic. Single power channel fault completes automatic isolation and failover without system power outage, eliminates single-point power failure risk.
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High-Stability Isolated Power Output
Provides clean low-ripple 24VDC field power and 5VDC logic power, fully isolates high-voltage AC input from safety DC control system, prevents electromagnetic interference and fault voltage intrusion.
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Multi-Level Complete Circuit Protection
Equipped with overvoltage, overcurrent, short-circuit, reverse polarity and surge protection, fully protects internal power circuits, backplane and connected I/O modules from fault damage.
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Real-Time Power Status Diagnosis & Indication
Integrates input voltage monitoring, output current monitoring, temperature monitoring and fault self-diagnosis. Front panel includes POWER OK, INPUT FAULT, OUTPUT FAULT, OVERTEMP LED indicators; fault data uploads to Tricon main controller in real time for alarm and safety interlock.
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Full Compatibility with Tricon Ecosystem
Perfectly matches all Tricon digital input/output, analog input/output, communication and remote extension modules; completely retains original TMR safety integrity, diagnosis and fail-safe functions.
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High-Reliability Industrial Heavy-Duty Structure
Adopts heavy-duty steel enclosure, anti-vibration, anti-corrosion and dustproof design, supports 24-hour continuous stable operation in harsh industrial sites.
Application Scenarios
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Oil & Gas Industry
Offshore platform remote wellhead ESD system power supply, onshore gathering station distributed extended I/O rack power supply, long-distance pipeline safety monitoring system remote rack power supply.
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Petrochemical & Refining Industry
Large refinery plant area distributed extended safety I/O power supply, reactor area remote BMS burner management system rack power supply, distillation unit remote safety interlock system power supply.
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Power Generation Industry
Power plant boiler-turbine auxiliary area remote safety rack power supply, generator protection system extended I/O power supply, water treatment plant distributed safety system power supply.
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Fire & Gas Detection System (FGS)
Plant-wide distributed fire and gas detection remote rack centralized power supply, hazardous area safety monitoring extended system power supply.
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Chemical Processing & Metallurgy Industry
Large chemical plant regional distributed safety rack power supply, smelting furnace remote safety interlock system power supply, mine area long-distance safety extension system power supply.
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General Large-Scale Distributed Safety Control
All SIL 3 safety-level remote extended RXM I/O rack power supply occasions, suitable for large industrial plants with scattered field devices requiring stable TMR safety power infrastructure.





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