Product Description

Overview

The Emerson KJ4001X1-BB1 is a DeltaV LocalBus left-side extender module designed to support horizontal carrier expansion in distributed control architectures. It extends the LocalBus path between the controller and the I/O carriers, ensuring stable communication signals and consistent power distribution across the rack. Moreover, its rugged construction allows dependable operation in demanding industrial environments where system continuity is critical.

This chassis module is widely used in legacy and current DeltaV platforms because it offers reliable mechanical alignment and clean electrical interfacing. In addition, the extender helps engineers expand existing installations without major hardware modifications, which makes it especially useful during system upgrades and I/O reconfiguration projects.

Technical Specifications

General Information

• Model: KJ4001X1-BB1

• Product Type: LocalBus Left Extender / Chassis Module

• Brand: Fisher Rosemount / Emerson

• Product ID: V-1006061

• Weight: 1.4 lbs

• Dimensions: 13.5 in × 7 in × 2 in

Electrical & Functional Characteristics

• Function: Extends LocalBus communication and power to left-side carriers

• System Compatibility: Emerson DeltaV distributed control system

• Bus Type: Horizontal LocalBus extension

Environmental Ratings

• Operating Temperature: –40 °C to +70 °C

• Relative Humidity: 5% to 95%, non-condensing

• Airborne Contaminants: ISA-S71.04-1985, Class G3

• Protection Rating: IP20

FAQ

Q1: What is the primary purpose of the KJ4001X1-BB1?
A1: It extends the DeltaV LocalBus to the left side, supporting additional carrier modules.

Q2: Is this module compatible with legacy DeltaV systems?
A2: Yes, it integrates with multiple DeltaV hardware generations and supports mixed-system expansions.

Q3: Does the extender include active electronics?
A3: No, it provides passive bus extension and alignment for DeltaV carrier assemblies.

Q4: Can it operate in harsh industrial environments?
A4: Yes, it supports G3 airborne contamination levels and wide temperature ranges.

Q5: Does it require special installation tools?
A5: No, it mounts directly into standard DeltaV racks using typical carrier hardware.