FOXBORO RH914XS – Remote Field I/O Housing for I/A Series and EcoStruxure DCS Installations

The FOXBORO RH914XS is a rugged, field-ready housing used to protect and terminate I/O in industrial control systems. From my experience, it’s typically paired with FOXBORO I/A Series remote I/O/termination assemblies and used where you need reliable signal marshaling between field devices and the control network. You might notice that it’s designed as a passive enclosure—no active electronics—so it focuses on protection, wiring convenience, and long-term reliability in harsh areas.

Our Order Placement Process and Guarantees

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

Key Features

• Industrial-grade enclosure – Built for field use with robust sealing to help keep dust and moisture out in most plant environments.
• Designed for FOXBORO I/A Series ecosystems – Typically used with FOXBORO remote I/O and termination assemblies; simplifies like-for-like replacement on legacy systems.
• Clean cable management – Organized terminal layout and grounding points to reduce noise and speed up maintenance checks.
• Passive, no internal power – No active electronics inside; minimizes failure risk and reduces heat build-up in the enclosure.
• Flexible mounting – Suits panel/wall mounting and, in many cases, DIN-rail sub-assembly inside a cabinet.
• Shielding and EMC practices – Provisions for shield termination and segregation between analog and discrete runs help keep signals stable.

Technical Specifications

Application Fields

The RH914XS is typically selected for distributed I/O in:

• Oil & gas – wellpad RTUs, separators, and pipeline valve stations where remote I/O needs a sealed housing.
• Petrochemical & chemical plants – marshaling field signals to the DCS with proper segregation and shielding.
• Power generation – balance-of-plant I/O drops, especially in retrofit projects with FOXBORO I/A Series.
• Water & wastewater – outdoor instrument clusters with mixed analog/discrete signals.
• Pulp & paper and metals – cabinet-based I/O islands close to the process to shorten cable runs.

Advantages & Value

• Reliability – Passive design means fewer components to fail; the enclosure does the protective work so your modules last longer.
• Compatibility – Fits common FOXBORO I/A Series remote I/O practices, which typically reduces engineering time during replacement or expansion.
• Cost control – In many cases, you keep existing wiring and terminations; only the housing or internal rail hardware needs attention.
• Supportable installed base – Proven path for spares and like-for-like swaps in brownfield plants, minimizing re-qualification effort.

A maintenance supervisor told us they swapped an RH914XS into a weather-exposed junction and, after two storm seasons, they saw no condensation ingress and fewer intermittent analog faults. That seems to match what we typically see when shielding and drain-wires are properly landed.

Installation & Maintenance

• Mounting & environment – Install on a rigid panel or wall; keep clearances for cable bends and door swing. Provide ventilation or sunshades if exposed to high ambient temperatures.
• Wiring practices – Separate analog, discrete, and high-voltage runs. Terminate shields at the designated point; avoid multiple ground references to limit loops.
• Ingress protection – Check gasket integrity, cable glands, and unused punch-outs. Re-torque gland nuts after temperature cycling.
• Routine checks – Quarterly inspection for corrosion, loose terminals, and label legibility. Clean dust with a dry, ESD-safe brush; avoid solvents on seals.
• Documentation – Keep the enclosure layout, terminal schedules, and I/O drawings inside a document sleeve for quick troubleshooting.

Quality & Certifications

• Manufacturer certifications typically include CE; many builds also align with UL/CSA for industrial control equipment.
• RoHS compliance is common for enclosure assemblies; batch documentation can be provided on request.
• Manufacturer’s warranty: 12 months (365 days) from shipment.