Most Requested

Most Requested
Ranked by the number of enquiries we received in the last 30 days. A high count usually means the part is failing in the field or going out of support — worth stocking before you need it.
Showing 1 - 12 of 19 products
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  • 3511
    Invensys
    In Stock
    3511
    Triconex 3511 is an eight-channel, non-commoned TMR pulse input module for AC-coupled balanced-differential signals from speed-sensing field devices.
  • 3510
    Invensys
    In Stock
    3510
    3510 is an eight-point TMR pulse input module for magnetic speed sensors from 20 to 20,000 Hz.
  • 3351
    Invensys
    In Stock
    3351
    3351 is a 32-point commoned 4–20 mA analog input module with 6% overrange.
  • 3301
    Invensys
    In Stock
    3301
    3301 is a 32-point commoned 24 Vdc digital input module for Trident systems.
  • 3211
    Invensys
    In Stock
    3211
    3211 is a Trident communication integration module with Ethernet, serial, and OPC UA services.
  • 3201
    Invensys
    In Stock
    3201
    3201 is a Trident communication module providing serial, Ethernet, and TriStation interfaces.
  • 3101
    Invensys
    In Stock
    3101
    3101 is the main processor used by the legacy Trident version 1.2 platform.
  • 3009
    Invensys
    In Stock
    3009
    3009 is the Tricon version 11 main processor with a dual-core 800 MHz QorIQ processor.
  • 3007
    Invensys
    In Stock
    3007
    3007 is a 25 MHz Tricon main processor with 1 MB SRAM for version 9.51 and 9.52 systems.
  • 3006
    Invensys
    In Stock
    3006
    Triconex 3006 is an Enhanced Main Processor II for installed Tricon version 9 safety-control systems.
  • 3805H
    Invensys
    In Stock
    3805H
    The TRICONEX 3805H is an 8-channel TMR analog output module converting digital signals to 4-20mA current with 12-bit resolution and SIL 3 certification
  • CM2201 7400206-100
    Invensys
    In Stock
    CM2201 7400206-100
    Triconex CM2201 7400206-100 is an existing communication-module baseplate assembly identified by the supplied product photographs.
Showing 1 - 12 of 19 products
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Why a part trends

This ranking comes from our own enquiry log, not from page views. When the same part number arrives from several unrelated plants in the same month, it is usually one of two things: a component reaching the end of its service life across an installed base, or a system that has just gone out of manufacturer support.

Either way it is a signal worth acting on. Parts that trend here tend to get harder to find over the following quarters, and prices move with scarcity rather than with a list.

If something you run appears on this page, it is worth holding a spare now. Ask your account manager to review your installed base against this list — we do it free for existing customers.