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RH924JH
RH924JH
RH924JH

Foxboro RH924JH HART Input Termination Assembly

  • Model: RH924JH
  • Brand: Foxboro (Schneider Electric)
  • Series: Foxboro Evo™ / I/A Series 200 Series I/O
  • Core Function: Terminates HART analog input field wiring
  • Product Type: Compression Termination Assembly (TA)
  • Key Specs: 8-channel analog input, HART compatible, compression terminals
  • Condition: New Original / New Surplus
  • Availability: In Stock (subject to inventory)
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Description

Key Technical Specifications

Parameter Value
Model RH924JH
Manufacturer Foxboro (Schneider Electric)
Product Type Compression Termination Assembly (TA)
Compatible Modules FBM214b, Compact FBM216b
Supported Signals 8 × 4–20 mA analog inputs with HART
Terminal Type Compression screw terminals
TA Cable Type Type 1 termination cable
Mounting DIN rail
Housing Material Polyamide (PA)
Operating Temperature −20 °C to +70 °C
Hazardous Area Certification Type 1 / Type 2 certifications available depending on application
Supersedes P0924JH

The RH924JH is specified for use with FBM214b and Compact FBM216b HART communication input modules, providing field termination for eight isolated 4–20 mA input channels with optional HART communication support.

 

Product Introduction

The Foxboro RH924JH is a DIN rail-mounted Compression Termination Assembly (TA) designed for Foxboro Evo™ and I/A Series distributed control systems. It interfaces field wiring with compatible HART analog input modules, including the FBM214b and Compact FBM216b, while maintaining organized field termination and reliable signal transmission.

RH924JH supports eight isolated 4–20 mA input channels with HART communication capability. It replaces the earlier P0924JH termination assembly and is commonly installed in process industries such as refining, chemical processing, power generation, and pharmaceutical manufacturing.

RH924JH

RH924JH

RH924JH

RH924JH

Installation & Configuration Guide

 

Stage 1 – Pre-Installation Preparation (10 Minutes)

⚠️ Safety First

  1. Notify plant operations before maintenance.
  2. Bring the process to a safe operating condition.
  3. Perform Lock-Out/Tag-Out (LOTO).
  4. Remove cabinet power and wait at least 5 minutes.

Required Tools

  • ESD wrist strap
  • Phillips screwdriver
  • Digital multimeter
  • Wire labels
  • Camera or smartphone

Preparation

  • Verify the replacement model is RH924JH.
  • Record the installed FBM module number.
  • Photograph all field wiring.
  • Confirm the correct Type 1 termination cable is available.

 

Stage 2 – Removing the Existing Assembly (10 Minutes)

  1. Disconnect cabinet power.
  2. Label every field conductor.
  3. Disconnect the termination cable.
  4. Remove the field wiring from the compression terminals.
  5. Release the DIN rail latch.
  6. Inspect the DIN rail and wiring for corrosion or damage.

⚠️ Retain the original termination assembly until commissioning is complete.

 

Stage 3 – Installing the RH924JH (10 Minutes)

  1. Mount the assembly securely on the DIN rail.
  2. Connect the Type 1 termination cable.
  3. Reconnect all field wiring according to the wiring diagram.
  4. Tighten terminal screws to the recommended torque.
  5. Verify cable routing and grounding.

Installation Checklist

  • ☑ Correct model installed
  • ☑ DIN rail latch secured
  • ☑ Wiring verified
  • ☑ Cable connected
  • ☑ Grounding confirmed

 

Stage 4 – Power-Up & Commissioning (10 Minutes)

  1. Verify there are no shorts before energizing the cabinet.
  2. Restore system power.
  3. Confirm the FBM recognizes all eight input channels.
  4. Verify HART communication where applicable.
  5. Perform loop checks using calibrated 4–20 mA sources.
  6. Confirm normal diagnostics before returning the process to service.

⚠️ If HART devices fail to communicate, verify field polarity, loop resistance, cable type, and FBM configuration before replacing hardware.

 

Frequently Asked Questions (FAQ)

Q1. Which Foxboro modules use the ?

The is designed primarily for the FBM214b and Compact FBM216b HART analog input modules. It provides field termination for eight isolated 4–20 mA input channels with HART capability.

Q2. Does replace an older part number?

Yes. supersedes the earlier P0924JH while maintaining the same application and functionality.

Q3. Does the support HART communication?

Yes. When used with compatible FBM214b or FBM216b modules, the termination assembly supports HART-enabled field devices operating on standard 4–20 mA loops.

Q4. Can the be installed in hazardous locations?

The applicable certification depends on the overall system configuration and the specific Termination Assembly certification type. Verify the installation against the relevant Foxboro agency certification documentation before commissioning.

Q5. What should I verify before ordering?

Confirm the following:

  • Exact model number ()
  • Compatible FBM model (FBM214b or Compact FBM216b)
  • Required termination cable type
  • Compression terminal requirements
  • Hazardous-area certification requirements
  • Existing Foxboro I/A Series or Foxboro Evo™ system version

Verifying these details before purchase helps prevent compatibility issues and reduces commissioning time.

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