FOXBORO RH926GH – I/A Series Termination Assembly for Reliable Field Wiring to FBM I/O

The FOXBORO RH926GH is a field termination component used in I/A Series installations to land field signals and cleanly interface them to the corresponding FBM (Fieldbus Module). From my experience, this part is typically selected when teams want a drop-in, like-for-like replacement that preserves their existing marshalling, wire numbers, and cabinet layout. It’s a passive piece of hardware, but it does a lot of heavy lifting in day-to-day reliability—solid terminals, tidy cable routing, and dependable shielding in noisy panels.

Company’s Order Placement Process and Guarantees

• Warranty: 365 days
• Delivery time: 1 week for in-stock; no more than one month at the latest
• Payment terms: 50% advance payment; full payment before delivery
• Express options: FedEx, UPS, DHL

Key Features

• Purpose-built for I/A Series FBMs – Designed to mate with the standard Foxboro I/O ecosystem, helping you keep existing wiring standards and documentation intact.
• Passive, maintenance-light design – No power requirement; fewer points of failure and straightforward troubleshooting.
• Clean field wiring – Clearly identified terminal points for common process signals (e.g., 4–20 mA, discrete, RTD when used with the matching FBM), which makes loop checks faster in many cases.
• DIN-rail/panel friendly – Typically mounts in standard control cabinets with room for shield bars and cable dressing.
• Shield and noise control practices – You might notice the grounding and shield tie-in is laid out for repeatable, low-noise terminations in industrial environments.
• Drop-in service replacement – Commonly used as a direct swap to restore a loop or standardize a cabinet after mixed repairs over the years.

Technical Specifications

Related or Supporting Products

• FOXBORO FBM2xx series – Analog/discrete/RTD input and output modules that the RH926GH typically mates with. Choose the FBM type to match your signal.
• System harnesses (I/A Series) – Factory cable sets for clean connection between the FBM and the termination assembly.
• FOXBORO RTT15S / RTT20 / RTT30 – If you’re landing temperature loops, these head/transmitter options can condition RTDs/TCs into 4–20 mA or digital before the FBM.
• Shield bars and cable glands – 1/2″ NPT or M20 glands and shield clamps for noise reduction and tidy strain relief.

Installation & Maintenance

• Cabinet environment: Follow standard control-cabinet practices—adequate ventilation, avoid water ingress, and keep within the typical -20 to +70 °C range.
• Wiring: Use properly sized, shielded twisted pair for analog signals; land shields at the designated grounding point. Maintain separation from high-voltage runs.
• Grounding: Bond the shield/ground bar per site standards to minimize induced noise, especially near VFDs or large motors.
• Verification: After installation, perform a loop check from field device to FBM. One thing I appreciate is how quickly you can isolate a terminal point if a loop reads off.
• Routine care: Retorque terminal screws during scheduled outages, tidy cable dressing, and keep labels legible. For systems using smart transmitters, consider periodic device diagnostics and firmware updates at the transmitter/FBM level.
• Safety: De-energize relevant circuits when landing wires. In most cases, lockout/tagout makes the work far more predictable.

Quality & Certifications

• Manufacturing quality: Typically produced under ISO 9001 quality systems.
• Compliance: CE marking and RoHS alignment are common for passive termination hardware in this class.
• Hazardous areas: When installed within certified enclosures and paired with properly rated FBMs and barriers, the assembly can be used in Ex-rated systems; verify your site certification matrix.
• Warranty: 365-day warranty from us; manufacturer warranty terms may vary by region and build, but 12 months is typical for this category.