Emerson KJ4002X1-BE1

Product Name:​ Emerson KJ4002X1-BE1 DeltaV top LocalBus extender cable assembly
Product Overview:​
Emerson KJ4002X1-BE1 is a DeltaV top extender cable assembly used to connect I/O carriers vertically or across enclosure sections. It extends LocalBus power and communication so additional I/O carriers can be installed in tall cabinets, split enclosures or segmented process panels.
Category:
Description
Technical Specifications:​
LocalBus circuit power: 12.6 VDC at 15 A maximum
Operating temperature: -40 °C to +70 °C
Humidity: 5% to 95% non-condensing
Shock: 10 G half-sine for 11 ms
Vibration: 1 mm peak-to-peak from 5 to 16 Hz, 0.5 G from 16 to 150 Hz
Airborne contamination: ISA-S71.04 Class G3
Protection: IP20
Total system limit: combined I/O carriers and all LocalBus extenders must not exceed 6.5 m
Hazardous area: ATEX/IECEx/Zone and Division approvals according to the issued cable label
Functional Features:​
Factory-preassembled connectors, upward top-mount routing, LocalBus power and data extension, redundant-capable DeltaV layouts, and fixed mechanical orientation to prevent reversed backplane connection.
Application Scenarios:​
Multi-carrier DeltaV cabinets, vertical I/O stacks, remote I/O enclosures, split control panels, hazardous-area Zone/Division installations and large process units requiring distributed termination close to the field.
Performance Parameters:​
The assembly maintains LocalBus voltage and communication integrity across the approved carrier chain. Maximum current and length limits protect against voltage drop, reflection and timing errors.
Material Composition:​
Shielded industrial cable, molded connector housings, metal or composite strain-relief components, plated contact pins and corrosion-resistant hardware suitable for G3 and hazardous-area installations.
Structural Characteristics:​
Preterminated top extender with fixed orientation connectors for DeltaV carriers. No field splicing is required. The cable routes between top positions of adjacent carriers or enclosure interface plates.
Working Principle:​
The extender carries LocalBus differential communication and distributed 12.6 VDC power between carriers. Controllers and I/O modules communicate across the extended backplane as a single logical LocalBus segment, provided total length and current remain within Emerson limits.
Installation Requirements:​
Install with system power de-energized. Secure cable supports to avoid tension on connectors. Route interconnecting cable between enclosures in conduit where required by hazardous-area rules. Verify carrier positions, top-mount orientation and total LocalBus length before closing panels. Maintain separation from high-voltage trays.
Usage Precautions:​
Never insert or remove the extender with system power energized. Do not exceed 6.5 m for the total combination of carriers and extender cables. Inspect connectors for deformation, moisture and contamination before installation. Replace the assembly if jacket abrasion, pin damage or repeated LocalBus faults are observed. Follow the DeltaV Zone/hazardous-area manual for classified locations.
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