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Product Overview

The Honeywell MC-TAOX12 (Part Number 51304441-175) functions as a high-density, 16-channel Analog Output Field Termination Assembly (FTA). It provides the critical signal bridge between I/O processors and field instrumentation for Experion PKS, High-Performance Process Manager (HPM), and TDC 3000 architectures. This 100% Brand New module generates precise 4–20 mA DC current signals to drive control valves, actuators, and I/P transducers. The "MC" designation confirms the presence of a specialized conformal coating, making this board the standard choice for aggressive industrial environments.

Technical Specifications

The MC-TAOX12 provides linear signal reproduction and robust electrical isolation for complex process loops.

Parameter Specification Details
Model Number MC-TAOX12
Part Number 51304441-175
Channel Count 16 Independent Channels
Signal Range 4–20 mA DC
Platform Support Experion PKS, HPM, TDC 3000
Redundancy Supports Dual I/O Processor Connections
Power Supply 24V DC Nominal
Wiring Interface Compression-style Screw Terminals
Environmental Protection Full Conformal Coating
Isolation Galvanic Isolation (System to Field)
Power Dissipation 6 Watts (Maximum)

Engineering Advantages

  • Corrosion-Resistant Architecture: The MC-TAOX12 features a high-grade conformal coating. This protective layer seals the PCB traces against humidity, salt air, and corrosive chemical vapors, ensuring hardware longevity in refineries and pulp and paper mills.

  • Seamless Redundancy Integration: The board design facilitates dual I/O processor connections. This enables the system to maintain a continuous 4-20mA signal to the field even during a processor failure or online upgrade, eliminating process bumps and unplanned shutdowns.

  • High-Integrity Signal Loop: Galvanic isolation protects the system bus from field-side electrical interference. This ensures that ground loops or electromagnetic noise from long cable runs do not compromise the accuracy of the analog signal.

  • Efficient Field Maintenance: Compression-style screw terminals ensure a gas-tight electrical connection. This design prevents terminal loosening due to industrial vibration and simplifies the replacement of field instruments without disturbing the control architecture.

FAQs

What is the difference between the MC and MU prefixes for the TAOX12?

The "MC" prefix (MC-TAOX12) indicates that the board includes a conformal coating for superior protection against environmental contaminants. The "MU" version typically lacks this coating. For most industrial applications involving moisture or chemicals, the MC-TAOX12 is the required specification.

Does the MC-TAOX12 support 0-20mA signals?

This module is optimized for standard 4–20 mA DC current loops, which is the industry standard for fail-safe analog control. It delivers the precise current required to modulate control valves and other final control elements accurately.

Is this unit compatible with my existing TDC 3000 HPM rack?

Yes. The 51304441-175 maintains the standard 6-inch FTA profile. It installs directly into existing HPM or Experion PKS I/O racks and connects to the I/O processors via standard Honeywell I/O cables.

Are these units refurbished or original factory new?

We supply only 100% Brand New Honeywell parts. Every MC-TAOX12 comes in its original factory condition, ensuring all components meet the full specified shelf life and MTBF (Mean Time Between Failures) ratings.

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