Emerson KJ4001X1-NB1 12P3368X012 REV:E | DeltaV I/O Carrier Extender Module, New Surplus

Emerson KJ4001X1-NB1 12P3368X012 REV:E | DeltaV I/O Carrier Extender Module, New Surplus

  • Model: KJ4001X1-NB1 12P3368X012 REV:E
  • Brand: Emerson
  • Series: DeltaV M-Series Distributed Control System
  • Core Function: Extends DeltaV I/O carrier LocalBus connections to support remote or expanded I/O rack layouts.
  • Product Type: I/O Carrier Extender / LocalBus Extension Module
  • Key Specs:
    • LocalBus power: 12 VDC at 8 A
    • Type: 1-Wide I/O Carrier Extender Left / Dual Left Extender
    • Maximum combined I/O carrier and LocalBus extender length: 6.5 m
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Category: SKU: Emerson KJ4001X1-NB1 12P3368X012

Description

Key Technical Specifications

Parameter Value
Manufacturer Emerson
Product Family DeltaV M-Series
Model Number KJ4001X1-NB1
Part Number 12P3368X012
Revision REV:E
Product Description 1-Wide I/O Carrier Extender Left
Function LocalBus dual left cable extension
LocalBus Power 12 VDC at 8 A
Operating Temperature -40°C to +70°C
Relative Humidity 5 to 95% non-condensing
Shock Rating 10g half sine wave for 11 ms
Vibration Rating 1 mm peak-to-peak from 2 to 13.2 Hz; 0.7g from 13.2 to 150 Hz
Airborne Contaminant Rating ISA-S71.04 Class G3
Hazardous Area Rating Class I Division 2 / Zone 2 certifications available
Maximum Extender Distance Combined carrier and extender length not exceeding 6.5 m
Installation Type DeltaV I/O carrier expansion architecture

 

Product Introduction

 

Emerson KJ4001X1-NB1 12P3368X012 REV:E Product Introduction

The Emerson KJ4001X1-NB1 12P3368X012 REV:E is a DeltaV M-Series LocalBus extender used to increase physical distance between I/O carrier assemblies and controller-side hardware. It is installed in applications where standard I/O carrier placement cannot meet cabinet layout or remote enclosure requirements.

This module is mainly valuable during DeltaV system expansions, cabinet modifications, and legacy DCS maintenance projects. It helps plants preserve existing I/O architectures without redesigning complete hardware layouts. Verify carrier compatibility and installation requirements against the DeltaV hardware manual before replacement.

KJ4001X1-NB1

Application Scenarios & Field Pitfalls (The Engineer’s Perspective)

 

Engineering Pain Point

A common field issue appears during plant expansions: the control cabinet is full, but the existing DeltaV I/O architecture cannot physically reach the new termination location. Engineers often face a choice between expensive cabinet redesigns or extending the existing LocalBus infrastructure. The KJ4001X1-NB1 is used in these situations to maintain the existing DeltaV M-Series I/O arrangement while adding physical flexibility.

 

Typical Applications

  • Oil & Gas – Expansion of process control cabinets for separator, compressor, and pump monitoring systems.
  • Chemical Processing – Remote placement of analog and digital I/O carriers near reactors, skids, and utility systems.
  • Power Generation – DeltaV-based auxiliary control systems requiring additional I/O cabinet spacing.
  • Water Treatment – Distributed instrumentation panels where field wiring distance requires cabinet separation.

 

Technical Pitfalls to Avoid

  1. Do not install or remove the extender under energized conditions.
    The LocalBus extender must not be disconnected while system power is active. Field technicians have damaged DeltaV hardware by treating these modules like simple passive connectors. Power isolation is required before removal.
  2. Check total LocalBus extension length before installation.
    Exceeding the allowed carrier and extender distance can create communication issues that are difficult to diagnose during commissioning. Confirm the complete rack topology first.
  3. Verify mechanical position and extender direction.
    The NB1 version is a left-side extender. Installing the wrong extender orientation can prevent proper carrier alignment and cause unnecessary troubleshooting during startup.

 

Related Products

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    DeltaV M-Series Dual Right Extender. Used when I/O carrier expansion is required on the opposite side of the carrier arrangement. Suitable for cabinet layouts requiring right-side LocalBus extension.
  • KJ4001X1-HA1
    DeltaV LocalBus Extender. A general LocalBus extension component used for expanding physical separation between DeltaV hardware assemblies.
  • KJ4001X1-BE1 12P0818X072
    DeltaV carrier-related hardware used in M-Series I/O assembly configurations. Applicable when replacing or expanding existing carrier infrastructure.
  • KJ3001X1-BJ1
    DeltaV M-Series I/O interface hardware. Used with DeltaV I/O architectures where additional module connectivity is required.
  • KJ3201X1-BA1
    DeltaV I/O module assembly component. Commonly found in M-Series field I/O configurations.
  • KJ3221X1-BA1
    DeltaV analog input/output related hardware. Used for process measurement applications requiring integration with DeltaV controllers.
  • KJ3241X1-BK1
    DeltaV I/O module component supporting process instrumentation interfaces.
  • VE3007 DeltaV MX Controller
    Newer DeltaV controller platform. Used in modernization projects where older M-Series infrastructure is being replaced or expanded.
  • KJ4001X1-CJ1 12P1902X042
    DeltaV terminal block assembly. Supports field wiring termination for compatible I/O configurations.

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