Description
EMERSON
FISHER-ROSEMOUNT
KJ4001X1-BA3
2 WIDE CARRIER BASE MODULE
PN: 12P3378X012
PMM046633
REV. B
30 VDC, 8A Max.
The Emerson Fisher-Rosemount KJ4001X1-BA3 is a 2-Wide Carrier Base Module designed to support modular I/O card installation within the DeltaV distributed control system (DCS) and associated PLC & HMI architectures. Acting as a physical and electrical foundation for I/O modules, this carrier base provides the mounting interface and backplane connectivity required to integrate control cards into the system cabinet. It plays a critical role in maintaining reliable, structured signal distribution and power delivery across the control network — making it an essential component in the automation infrastructure of modern vessels.
Key Features
✓ 2-Wide carrier configuration provides dual-slot capacity for modular I/O or controller card installation within DeltaV-compatible enclosures.
✓ Rated at 30 VDC with a maximum current draw of 8A, as specified on the original product nameplate — all other electrical parameters are subject to confirmation against system documentation.
✓ Compatible with Emerson Fisher-Rosemount DeltaV DCS platforms; exact controller, I/O module, and system version compatibility should be confirmed against installation drawings and panel configuration prior to fitment.
✓ Designed for installation within protected control cabinet environments; mounting location, enclosure type, and environmental ratings should be verified against the original system specification and vessel drawings.
✓ Revision B unit — when replacing or retrofitting, engineers should confirm revision compatibility with the installed system to ensure seamless integration and avoid configuration conflicts.
Marine Applications
✓ Integrated bridge and vessel management systems on offshore support vessels, platform supply vessels, and DP-classed ships requiring structured DCS I/O expansion.
✓ Engine control room automation panels on merchant vessels including bulk carriers, tankers, and container ships running Emerson-based control architectures.
✓ Cargo handling and ballast control automation systems where DeltaV DCS modules are used to manage valve, pump, and sensor I/O across distributed cabinet configurations.
✓ Offshore platform and FPSO topside control systems utilising DeltaV for process automation, where carrier base modules form the structural backbone of the I/O subsystem.
✓ Retrofit and upgrade projects aboard vessels transitioning to or expanding existing Emerson DeltaV control infrastructure, where additional carrier capacity is required.
Why Marine Engineers Choose
Emerson Fisher-Rosemount carrier base modules are a trusted component within the DeltaV ecosystem, valued for their robust construction, reliable backplane connectivity, and compatibility with a wide range of I/O cards used across critical onboard automation systems. Their standardised form factor simplifies replacement logistics and minimises control system downtime during planned maintenance or fault recovery.
Ideal For
Merchant vessels, offshore support vessels, FPSOs, platform supply vessels, tankers, bulk carriers, and any vessel class operating Emerson Fisher-Rosemount DeltaV-based PLC & HMI control systems requiring modular I/O carrier infrastructure.
Technical Support & Compliance
Technical assistance is available to support remote troubleshooting, onboard diagnostics, commissioning, and system integration of this carrier base module within existing DeltaV control architectures — subject to confirmation. Retrofit and upgrade support can also be provided where engineers are expanding or replacing carrier infrastructure within an operational panel. To confirm compatibility and suitability, buyers are advised to share nameplate photographs, the full part number and revision, panel layout or system drawings, the DeltaV system version and controller model in use, and where applicable, the vessel name, IMO number, and full scope of the replacement or integration requirement. All compatibility and application claims are subject to confirmation against actual system documentation.
