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Foxboro P0916KH I/A Series Termination Assembly

The Foxboro P0916KH, also cataloged as the P0916KH-0B Termination Assembly, operates as a dedicated hardware component for wiring termination and field signal routing within Foxboro I/A Series DCS networks. It accepts up to 24 channels of field wiring to interface 4-20 mA, RTD, thermocouple, and discrete signals directly to paired Fieldbus Modules (FBMs). The assembly maintains galvanic isolation between field conductors and system logic buses while executing signal conditioning across industrial loops.

Hardware Specifications

Parameter Specification
Model P0916KH
Brand Foxboro (Schneider Electric)
Origin USA
Weight Standard Termination Assembly footprint
Dimensions Standard Foxboro I/A Series TA mounting footprint
Operating Temp -20 to +70 deg C
Power Consumption Passive field terminal interface
Channels Supported Up to 24 channels (FBM dependent)
Signal Types 4-20 mA, RTD, Thermocouple, Discrete Signals
Isolation Galvanic isolation between field wiring and logic
Connector Type Removable terminal blocks (spring clamp or screw type)
Wiring Capacity 18 to 22 AWG copper conductors
Enclosure Rating IP20
Mounting Standard 35 mm DIN rail or panel baseplate

Cold Junction Compensation & Channel-to-Channel Isolation

The Foxboro P0916KH incorporates onboard cold junction compensation (CJC) temperature sensors directly adjacent to thermocouple terminal blocks. This architecture compensates for ambient thermal gradients across field connections, eliminating thermoelectric potential errors prior to signal digitization by host FBM units. Combined with channel-to-channel galvanic isolation paths, the assembly prevents ground loop currents, suppresses industrial common-mode noise, and maintains signal integrity for low-millivolt input loops across process control networks.

Frequently Asked Questions

Q: Does the P0916KH termination assembly require active configuration software or field calibration?

A: No, the assembly is a hardware connection interface and does not require calibration. Signal scaling and channel configuration are managed directly within the host Foxboro I/A Series DCS software tools upon assignment to the corresponding FBM module.

Q: Can terminal wiring be serviced without disconnecting individual field conductors?

A: Yes, the unit utilizes removable terminal block assemblies (spring clamp or screw type) that allow field wiring harnesses (18 to 22 AWG) to remain wired during module replacement.

Field Installation Guidelines

Mount the termination assembly chassis onto a standard 35 mm DIN rail or secure it to a panel baseplate inside a protective IP54 enclosure. Maintain a minimum vertical spacing of 50 mm above and below the block to support convection cooling and ensure adequate wire duct clearance.

Route low-voltage analog signal cables separately from high-voltage power lines. Strip field conductors to manufacturer specifications and secure them into the 18 to 22 AWG removable terminal blocks using standard torque limits. Connect cable shields to the dedicated cabinet ground bus at a single ground point to maintain galvanic isolation and suppress electromagnetic interference. Secure the interface cable linking the P0916KH termination assembly directly to the corresponding FBM baseplate port.

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