ICS Triplex T8243 Trusted Power Port

Technical Specifications

  1. Mechanical Specifications
    • Form Factor: 19‑inch EIA‑310 rack‑mount; 1U (43 mm) height
    • Mounting: Requires T8247 Support Brackets for secure swingframe installation
    • Dimensions (H×W×D): 43 mm × 483 mm × 300 mm (1.71 in × 19 in × 11.81 in)
    • Weight: 2 kg (4.41 lbs)
    • Front Panel: Dual input OK LEDs, dual output OK LEDs, global fault LED, alarm status LED
    • Backplane: Dual redundant 24 VDC output buses; 1500 VDC input‑to‑output isolation
    • Material: Steel chassis with powder‑coated finish (industrial grey); UL 94 V‑0 rated plastic front panel
    • Connectivity: Plug‑in terminal blocks for T8240 shelf input; screw‑locked terminals for T8100 chassis output
  2. Electrical Specifications
    • Output: Dual‑redundant 24 VDC (±0.5 V tolerance); 150 A total current capacity (75 A per path)
    • Isolation: 1500 VDC input‑to‑output; 500 VDC output‑to‑chassis
    • Protection: Overcurrent (75 A per path), overvoltage (27 VDC threshold), short‑circuit (current‑limited, auto‑recover)
    • Power Distribution: Dual bus bars with redundant terminal blocks for T8100 chassis connection
    • Diagnostics: Dry contact alarm outputs (NC/NO) for global fault, power path failure, and output undervoltage
    • Power Consumption: 10 W (max) during normal operation
Category:
Description
  1. Environmental Specifications
    • Operating Temperature: -40°C to +70°C (matches T8240/T8100 operating ranges)
    • Storage Temperature: -40°C to +85°C
    • Relative Humidity: 5%–95% (non‑condensing)
    • Shock Resistance: 30 g, 11 ms duration (per IEC 60068‑2‑27)
    • Vibration Resistance: 5 g, 10–150 Hz (per IEC 60068‑2‑6)
    • EMI/EMC Compliance: EN 61000‑6‑2 (immunity), EN 61000‑6‑4 (emissions); CE marked
    • Protection Rating: IP20 front panel (prevents finger contact with live parts; protects against solid objects >12 mm)
  2. Safety & Compliance
    • Safety Certification: IEC 61508 SIL 3 (TÜV certified); UL 61010‑1, CSA C22.2 No. 61010‑1
    • Redundancy: Dual‑redundant power paths with automatic failover
    • Mean Time Between Failures (MTBF): 250,000 hours (per Telcordia SR‑332, 25°C)
    • Isolation: 1500 VDC input‑to‑output (per IEC 61508 requirements)

Functional Features

  1. Dual‑Redundant Power Paths: Two independent 24 VDC power buses ensure continuous delivery during single‑path failures, eliminating single points of failure.
  2. 1500 VDC Isolation: Input‑to‑output isolation prevents cross‑circuit faults, preserving SIL 3 compliance for SIS.
  3. Hot‑Swap Support: Plug‑in design allows tool‑free installation/removal without system shutdown, enabling zero‑downtime maintenance.
  4. Front‑Panel Diagnostics: Dual input/output OK LEDs and global fault LED enable rapid troubleshooting of power distribution issues.
  5. Dry Contact Alarms: Global fault, power path failure, and undervoltage alarms integrate with SCADA/DCS for real‑time monitoring.
  6. T8240/T8100 Compatibility: Seamlessly interfaces T8240 Power Shelves with T8100 chassis, ensuring consistent power distribution across Trusted systems.
  7. 1U Rack‑Mount Design: Compact form factor fits standard industrial enclosures, simplifying system integration.
  8. Overcurrent/Overvoltage Protection: Current/voltage limiting prevents damage to connected T8100 chassis during power surges or short circuits.
  9. Plug‑In Terminal Blocks: Simplify wiring and reduce installation time, with secure screw‑locked connections for T8100 chassis output.
  10. Passive Cooling Compatibility: Supports natural convection and forced air cooling, maintaining optimal operating temperatures in harsh environments.

Application Scenarios

  1. Safety Instrumented Systems (SIS): Deployed in oil & gas and chemical plants to distribute redundant 24 VDC from T8240 Power Shelves to T8100 SIS controllers for ESD, F&G, and BMS applications with SIL 3 compliance.
  2. Refineries & Petrochemical Facilities: Interfaces T8240 shelves with T8100 expander chassis in DCS‑integrated SIS, ensuring power isolation during AC fluctuations and enabling hot‑swap maintenance without process interruption.
  3. Nuclear Power Auxiliary Systems: Used in nuclear plant safety systems, providing dual‑redundant power distribution for T8100 controllers with SIL 3 compliance and alarm integration for regulatory reporting.
  4. Marine & Offshore Platforms: Installed on offshore rigs to connect T8240 shelves with T8100 vessel control systems, withstanding extreme temperatures/vibration while maintaining continuous power delivery.
  5. Pharmaceutical Manufacturing: Supports T8100 batch control SIS, delivering isolated 24 VDC for critical process monitoring and compliance logging, with hot‑swap capability for maintenance during production runs.
  6. Mining & Heavy Industry: Distributes power from T8240 shelves to remote T8100 systems in underground mines, protecting against dust/moisture while enabling maintenance without disrupting safety controls.

Additional Information

  • Origin: United States
  • Warranty: 12‑month warranty for new original units; extended warranties available via Rockwell Automation service contracts
  • Compatibility: Exclusively compatible with T8240 Power Shelves and T8100 processor/expander chassis (not for T8870 or non‑Trusted systems)
  • Installation: Requires T8247 Support Brackets for 19‑inch rack mounting; plug‑in connectivity for tool‑free installation
  • Maintenance: No firmware required; inspect terminals periodically for corrosion or loose connections
  • Disposal: Classified as non‑hazardous waste; dispose of per local industrial waste regulations
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