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 forming a fundamental structural and electrical component within the DeltaV distributed control architecture. As part of the Marine Control System category, this carrier module provides the mounting and interconnection platform for I/O and controller cards, enabling modular, scalable control system builds aboard commercial and industrial vessels. Its role is critical to system integrity — without a reliable carrier base, field modules cannot be correctly seated, powered, or communicate with the control network. Rated at 30 VDC with a maximum current draw of 8A, this unit supports stable, low-voltage DC operation typical of modern marine automation environments.
Key Features
✓ Functions as a 2-wide carrier base, providing physical mounting and electrical backplane connectivity for compatible DeltaV I/O and controller modules within a modular control system.
✓ Rated at 30 VDC, 8A Max. — as stated on the unit nameplate — supporting stable DC-powered operation; additional electrical specifications are subject to confirmation against system documentation.
✓ Designed for compatibility within the Emerson Fisher-Rosemount DeltaV control platform; suitability for specific system configurations, firmware versions, or panel builds should be confirmed prior to installation.
✓ Intended for installation within control panels or equipment rooms in dry, protected environments typical of marine automation cabinets; SOLAS relevance depends on the system function it supports onboard.
✓ Serves as a direct replacement or spare carrier base for DeltaV-based control systems; referencing the full part number (12P3378X012, Rev. B) and system configuration is recommended to confirm interchangeability before fitment.
Marine Applications
✓ Integrated into DeltaV-based process and automation control systems aboard offshore platforms, FPSOs, and production vessels requiring modular, scalable I/O architecture.
✓ Used in engine control room (ECR) automation panels on merchant vessels including bulk carriers, tankers, and container ships where distributed control is employed.
✓ Applied within cargo management and monitoring systems on chemical tankers and LNG carriers where precise, reliable I/O module support is essential to operational safety.
✓ Installed in machinery automation and monitoring systems on naval auxiliaries, research vessels, and specialist offshore support vessels utilising Emerson DeltaV platforms.
✓ Suitable for retrofit and upgrade projects where existing DeltaV carrier infrastructure requires replacement or expansion to accommodate additional control modules.
Why Marine Engineers Choose
Marine engineers specify the Emerson Fisher-Rosemount 2-Wide Carrier Base Module for its proven role within the DeltaV ecosystem, offering a dependable and standardised foundation for modular I/O builds. Its straightforward form factor and defined electrical rating simplify panel design, spare-holding, and on-site replacement, reducing system downtime during maintenance windows.
Ideal For
Offshore platforms, FPSOs, LNG carriers, chemical tankers, bulk carriers, container vessels, naval auxiliaries, and any vessel or installation operating an Emerson Fisher-Rosemount DeltaV distributed control system requiring carrier base module support or sparing.
Technical Support & Compliance
Technical assistance is available to support remote troubleshooting, pre-installation checks, onboard commissioning guidance, and integration queries related to this carrier module within existing DeltaV control systems. Retrofit and upgrade scoping can also be discussed where carrier expansion or system modernisation is required. To confirm compatibility and suitability — subject to confirmation — buyers are advised to share nameplate photographs, the full part number and revision, system model and firmware version, relevant control panel drawings or schematics, and vessel name, IMO number, and scope of intended use. This information enables accurate cross-referencing and ensures the correct module is supplied for the intended application.
