Triconex 5351 Analog Input Module

The Triconex 5351 is a Triple Modular Redundant (TMR) analog input module for the Tricon safety system, providing 16 fully isolated 4–20 mA / 0–5V / 0–10V input channels with 2oo3 voting, onboard open-circuit/over-range detection, >99% diagnostic coverage, and hot-swap capability, certified to SIL 3 (IEC 61508) for high-integrity process shutdown and emergency safety applications in oil & gas, petrochemical, and power industries.


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Description

Technical Specifications
  • Brand
    Triconex
  • Model
    5351
  • Product Name
    TMR Analog Input Module / TriPak 1 Assembly
  • Country of Origin
    United States
  • HS Code
    8538909100
  • Dimensions
    450mm(Height)×200mm(Width)×150mm(Depth)
  • Weight
    3.0 kg (6.61 lbs)
  • Operating Temperature
    -40°C to 70°C (-40°F to 158°F)
  • Storage Temperature
    -40°C to 85°C (-40°F to 185°F)
  • Power Supply
    24VDC
  • Warranty
    12 month
  • Product Status
    New and original

Triconex 5351 Power and Input Specifications

System Rated Voltage: 24V DC nominal power routed directly via the internal chassis backplane

Input Signal Type: 4–20 mA DC proportional analog current loops

Total Points/Channels: High-density architecture supporting up to 32 independent analog input channels per TriPak sub-module

Input Filter Frequency: Configured with a 16 Hz low-pass input filtering threshold to reject high-frequency line noise

5351 .jpg

Triconex 5351 Wiring and Connection Methods

Triconex 5351 Wiring and Connection Methods

Field Interface Terminal Board: Interfaces via a dedicated external field termination assembly (FTA) block connected through high-density backplane ribbon cables.

Wiring Connection Type: Employs industrial compression screw-clamp termination blocks on the companion FTA, supporting wire sizes from 24 AWG down to 12 AWG (0.2 mm² to 2.5 mm²).

Shielding Requirements: Shielded twisted-pair (STP) instrument cabling must be used for field loops, with all drain shields cleanly terminated at the structural panel instrument ground bus.

5351  .jpg

Triconex 5351 System Processing & Features

TMR Triple Voting Processing: Employs three independent microprocessors to read and vote on field data, eliminating any single point of failure.

On-board Diagnostics: Executes continuous background self-test loops to detect sensor degradation, open-circuit faults, and out-of-range loop currents.

Online Hot-Swapping: Supports online module level removal and replacement (hot-swapping) on a live system without disrupting active field instrumentation wiring.

Front Panel Indicators: Integrated physical LEDs provide real-time diagnostic status updates for Module Pass, Fault, Active, and Channel Status.

5351 .jpg

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