ICS Triplex T8240 Trusted Power Shelf

Technical Specifications

  1. Mechanical Specifications
    • Form Factor: 19‑inch EIA‑310 rack‑mount; 1U (43 mm) height
    • Slot Capacity: 3 hot‑swap bays for T8231C Power Packs
    • Dimensions (H×W×D): 43 mm × 483 mm × 340 mm (1.71 in × 19 in × 13.36 in)
    • Weight: 3.2 kg (7.05 lbs) (empty); 9.3 kg (20.5 lbs) with 3 T8231C modules
    • Mounting: Flange‑mount brackets included for standard 19‑inch racks
    • Front Panel: 3 slot indicators (per slot: input OK, output OK, fault); global system OK LED; load‑sharing status LED
    • Backplane: Shared 24 VDC output bus; redundant power distribution board; 1500 VDC input‑output isolation
    • Material: Steel chassis with powder‑coated finish (industrial grey); UL 94 V‑0 rated plastic front panel
  2. Electrical Specifications
    • Output Bus: 24 VDC regulated (via T8231C modules); supports up to 2250 W total output (3 × 750 W)
    • Load Sharing: Automatic current balancing between power packs (±5% load distribution accuracy)
    • Isolation: 1500 VDC input‑to‑output (per T8231C); 500 VDC output‑to‑chassis
    • Protection: Overcurrent (31 A per slot), overvoltage (27 VDC bus threshold), short‑circuit (current‑limited, auto‑recover)
    • Power Distribution: Redundant bus bars with screw‑locked terminal blocks for T8100 chassis connection
    • Diagnostics: Dry contact alarm outputs (NC/NO) for global fault, power pack failure, and output undervoltage
Category:
Description
  1. Environmental Specifications
    • Operating Temperature: -40°C to +70°C (matches T8231C operating range)
    • 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 Support: 1+1 or N+1 redundant power pack configurations (automatic failover)
    • Mean Time Between Failures (MTBF): 300,000 hours (per Telcordia SR‑332, 25°C, empty shelf)
    • Power Factor: PF ≥ 0.95 (via T8231C active PFC)

Functional Features

  1. Triple Slot Capacity: Supports up to three T8231C Power Packs, enabling flexible redundancy (1+1) or high‑power (3×750 W) configurations.
  2. Automatic Load Sharing: Balances current across installed power packs to prevent overloading and extend module lifespan.
  3. Hot‑Swap Support: Tool‑free insertion/removal of T8231C modules allows replacement without system shutdown, ensuring zero‑downtime maintenance.
  4. Front‑Panel Diagnostics: Per‑slot and global LED indicators for input power, output voltage, module fault, and load‑sharing status enable rapid troubleshooting.
  5. Redundant Power Distribution: Dual bus bars with overcurrent protection ensure continuous power delivery during single power pack failure.
  6. SIL 3 Alignment: 1500 VDC isolation and compliance with IEC 61508 SIL 3 preserve safety integrity for TMR systems.
  7. Dry Contact Alarms: Global fault, power pack failure, and undervoltage alarms for integration with SCADA/DCS monitoring systems.
  8. 1U Rack‑Mount Design: Compact form factor fits standard industrial enclosures, simplifying system integration.
  9. Backplane Compatibility: Shared 24 VDC output bus directly connects to T8100 controller/expander chassis backplanes, ensuring seamless power distribution.
  10. Passive Cooling Compatibility: Supports natural convection and forced air cooling for T8231C modules, maintaining optimal operating temperatures.

Application Scenarios

  1. Safety Instrumented Systems (SIS): Deployed in oil & gas and chemical plants to house T8231C Power Packs, delivering redundant 24 VDC to T8100 SIS controllers for ESD, F&G, and BMS applications with SIL 3 compliance.
  2. Refineries & Petrochemical Facilities: Powers T8100 expander chassis in DCS‑integrated SIS, ensuring load‑balanced power delivery during AC fluctuations and enabling hot‑swap maintenance without process interruption.
  3. Nuclear Power Auxiliary Systems: Used in nuclear plant safety systems, providing 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 house T8231C modules, withstanding extreme temperatures and vibration while delivering continuous power to vessel control and safety systems.
  5. Pharmaceutical Manufacturing: Supports T8100 batch control SIS, maintaining precise 24 VDC regulation and redundant power for critical process monitoring and compliance logging.
  6. Mining & Heavy Industry: Powers remote T8100 systems in underground mines, with hot‑swap capability enabling maintenance without disrupting ventilation or conveyor safety controls.

Additional Information

  • Origin: United States
  • Warranty: 12‑month warranty for new original units; extended warranties via Rockwell Automation service contracts
  • Compatibility: Exclusively designed for T8231C Power Packs and T8100 controller/expander chassis (not compatible with T8300 or non‑Trusted systems)
  • Installation: 19‑inch rack mounting; redundant configuration requires 2 T8231C modules and T8235 slot covers for unused bays
  • Maintenance: No firmware required; inspect bus bars and terminals periodically for corrosion or loose connections
  • Accessories: T8235 slot covers, mounting brackets, and bus bar extension kits available for custom configurations
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