Description
EMERSON
FISHER-ROSEMOUNT SYSTEMS
KJ4001X1-NA1
DUAL RIGHT EXTENDER
PN: 12P3373X012
REV: C
PMM045636
The Emerson Fisher-Rosemount KJ4001X1-NA1 Dual Right Extender is a modular expansion component designed for use within DeltaV-series PLC and HMI control architectures. Functioning as a right-side carrier extender, it enables the physical and electrical extension of I/O subsystems within a controller node, allowing additional modules to be integrated into the control network. In marine and offshore environments, components of this type are integral to distributed control systems (DCS) managing critical onboard processes, from machinery automation to process monitoring. Reliable extender hardware ensures uninterrupted data communication between I/O modules and the controller, which is essential for maintaining operational continuity and system integrity at sea.
Key Features
✓ Dual Right Extender configuration supports modular I/O expansion within Emerson Fisher-Rosemount DeltaV-series control systems, enabling scalable architecture.
✓ Exact voltage ratings, dimensions, and certifications are not specified in available data — technical parameters are subject to confirmation against the original system documentation and nameplate details.
✓ Compatible with Emerson Fisher-Rosemount DeltaV PLC & HMI platforms; system-level compatibility should be verified against controller version and carrier configuration prior to installation.
✓ Designed for installation within control panels and controller enclosures in dry, protected spaces typical of marine automation environments — mounting context depends on vessel-specific system layout.
✓ As a direct replacement or spare component, this extender supports system continuity during maintenance cycles and corrective repairs, minimising control system downtime.
Marine Applications
✓ Integrated into DeltaV distributed control systems aboard offshore platforms and FPSOs for process automation and safety system support.
✓ Used in machinery control and monitoring systems aboard commercial cargo vessels, tankers, and bulk carriers requiring modular I/O expansion.
✓ Applied within automation panels on LNG carriers and chemical tankers where process control reliability is operationally critical.
✓ Supports I/O subsystem architecture on drillships and semi-submersibles managing complex, multi-loop control environments.
✓ Relevant to retrofit and upgrade projects where existing DeltaV controller nodes require expanded I/O capacity to meet updated operational requirements.
Why Marine Engineers Choose
Emerson Fisher-Rosemount components are trusted across the marine and offshore sectors for their proven reliability within demanding DCS environments. The KJ4001X1-NA1 Dual Right Extender supports the modular flexibility that engineering teams depend on when maintaining or expanding shipboard control infrastructure.
Ideal For
Offshore platforms, FPSOs, LNG carriers, chemical tankers, bulk carriers, cargo vessels, drillships, and any vessel operating Emerson Fisher-Rosemount DeltaV-based PLC & HMI automation systems.
Technical Support & Compliance
Technical assistance is available to support remote troubleshooting, onboard diagnostics, testing and commissioning, component repair assessment, system retrofit, and DeltaV integration. Compatibility is subject to confirmation — buyers are advised to share nameplate photographs, the full part number and revision, system model and software version, carrier configuration details, vessel name, IMO number, and scope of application prior to ordering to ensure suitability.
