ICS Triplex T8293 Trusted 15‑Way Fused Power Distribution Unit

Technical Specifications

  1. Mechanical Specifications
    • Form Factor: EN 50022 35 mm DIN‑rail mountable; compact control panel design
    • Dimensions (H×W×D): 79 mm × 285 mm × 109 mm (3.1 in × 11.2 in × 4.3 in)
    • Weight: 576 g (1.3 lb)
    • Front Panel: Dual input power OK LEDs, 15 individual fuse status LEDs (green = OK, red = fault), common alarm LED
    • Backplane: Dual redundant input terminals; 15 dual fused output terminals (screw‑locked)
    • Material: UL 94 V‑0 rated plastic housing; corrosion‑resistant metal terminal blocks
    • Connectivity: Input/output terminals accept 0.5 mm² to 2.5 mm² conductors; screw‑locked for vibration resistance
    • Fuse Access: Tool‑free fuse holders for hot‑swap replacement without system shutdown
  2. Electrical Specifications
    • Input Voltage: Link‑selectable 24 VDC (22–30 VDC) or 48 VDC (43–60 VDC); dual redundant inputs
    • Input Current: 23 A maximum total input current
    • Output Channels: 15 dual fused outputs; 3.15 A per channel (fast‑acting fuses)
    • Output Protection: Individual 3.15 A fuses per channel; prevents overcurrent/short‑circuit damage
    • Isolation: 1500 VDC input‑to‑output; 500 VDC output‑to‑chassis
    • Alarm Output: Dry contact common alarm (NC/NO configurable) for fuse fault notification
    • Power Consumption: 2 W maximum during normal operation
Category:
Description
  1. Environmental Specifications
    • Operating Temperature: -40°C to +70°C (matches Trusted system 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, UL certified
    • Protection Rating: IP20 front panel (prevents finger contact with live parts; protects against solid objects >12 mm)
  2. Safety & Compliance
    • Safety Certification: UL 61010‑1, CSA C22.2 No. 61010‑1; CE marked
    • Redundancy: Dual‑redundant power inputs eliminate single points of failure
    • Mean Time Between Failures (MTBF): 400,000 hours (per Telcordia SR‑332, 25°C)
    • Fuse Standard: IEC 60269‑1 compliant 3.15 A fast‑acting fuses
    • SIL Compliance: Supports SIL 3 safety integrity level when used with Trusted SIS components

Functional Features

  1. Dual‑Redundant Power Inputs: Two independent input channels ensure continuous power delivery during single‑input failures, eliminating single points of failure.
  2. 15 Individually Fused Outputs: 3.15 A per channel protects FTAs and field devices from overcurrent/short‑circuit faults, preventing fault propagation across channels.
  3. Link‑Selectable Voltage: Switch between 24 VDC (22–30 VDC) and 48 VDC (43–60 VDC) input ranges to match system requirements.
  4. Front‑Panel Diagnostics: Dual input OK LEDs and 15 individual fuse status LEDs enable rapid identification of faulty fuses for quick replacement.
  5. Dry Contact Common Alarm: Configurable NC/NO alarm output integrates with SCADA/DCS for real‑time monitoring of fuse failures.
  6. DIN‑Rail Mounting: Standard 35 mm DIN‑rail compatibility simplifies installation in control panels, reducing integration time.
  7. Hot‑Swap Fuse Replacement: Tool‑free fuse holders allow replacement without system shutdown, enabling zero‑downtime maintenance.
  8. 1500 VDC Isolation: Input‑to‑output isolation preserves SIL 3 compliance and prevents cross‑circuit faults in SIS applications.
  9. Screw‑Locked Terminals: Secure connections for input/output wiring, resisting vibration in harsh industrial environments.
  10. Trusted System Compatibility: Seamlessly integrates with Trusted FTAs, T8100 chassis, and T8240 Power Shelves, ensuring consistent power distribution across systems.

Application Scenarios

  1. Safety Instrumented Systems (SIS): Deployed in oil & gas and chemical plants to distribute fused 24 VDC/48 VDC power from T8240 Power Shelves to Trusted FTAs for ESD, F&G, and BMS applications with SIL 3 compliance.
  2. Refineries & Petrochemical Facilities: Powers FTAs in DCS‑integrated SIS, ensuring individual output protection during power surges and enabling hot‑swap fuse maintenance without process interruption.
  3. Nuclear Power Auxiliary Systems: Used in nuclear plant safety systems to distribute power to field sensors and actuators via FTAs, with dual‑redundant inputs and alarm integration for regulatory compliance.
  4. Marine & Offshore Platforms: Installed on offshore rigs to power Trusted FTAs and low‑power field devices, withstanding extreme temperatures/vibration while maintaining continuous power delivery.
  5. Pharmaceutical Manufacturing: Distributes fused power to FTAs in batch control SIS, maintaining precise power protection for critical process monitoring and compliance logging.
  6. Mining & Heavy Industry: Powers remote FTAs in underground mines, providing overcurrent protection and alarm integration for safety systems in confined, high‑vibration environments.

Additional Information

  • Origin: United States
  • Warranty: 12‑month warranty for new original units; extended warranties available via Rockwell Automation service contracts
  • Compatibility: Exclusively designed for Trusted FTAs, T8100 chassis, and T8240 Power Shelves; not for non‑Trusted systems
  • Installation: 35 mm DIN‑rail mounting; requires no special tools; aligns with standard control panel layouts
  • Maintenance: Inspect fuse status LEDs periodically; replace fuses with IEC 60269‑1 compliant 3.15 A fast‑acting types
  • Accessories: Replacement 3.15 A fuses (part number: T8293‑FUSE), DIN‑rail mounting clips, and alarm wiring harnesses available
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