Emerson DeltaV KJ Series Modules: KJ4001X1-CK1 12P0732X122 40-Pin Mass Termination Block

Technical Dossier

Product Details And Specifications

Emerson DeltaV KJ Series: Comprehensive Module Range and Technical Overview

The Emerson DeltaV KJ Series represents one of the most widely deployed distributed control system (DCS) I/O subsystem architectures in global heavy industry. Installed across petrochemical complexes, nuclear power generation facilities, offshore oil platforms, and large-scale refinery operations, the KJ Series defines the field I/O layer of the DeltaV architecture. Its modular design — built around a standardized 2-wire and 4-wire field termination philosophy — allows plant engineers to configure, replace, and expand I/O capacity without interrupting process operations. The KJ4001X1-CK1 12P0732X122 40-Pin Mass Termination Block is a critical passive interconnect component within this ecosystem, providing the physical wiring interface between field cables and DeltaV I/O cards. It is used in conjunction with marshalling cabinets and I/O subsystem enclosures across all major DeltaV system revisions from v7.x through v15.x.

The Evolution of DeltaV KJ Series Architecture

The DeltaV KJ Series I/O platform was introduced by Fisher-Rosemount (later Emerson Process Management) in the mid-1990s as the field I/O backbone for the DeltaV DCS. The architecture has undergone four distinct generational transitions:

Generation 1 (DeltaV v3–v5, 1996–2002): Initial KJ Series modules used parallel backplane communication with proprietary bus protocols. Termination blocks in this era were single-density, supporting 16-channel I/O cards. Wiring infrastructure was entirely discrete.

Generation 2 (DeltaV v6–v8, 2002–2008): Introduction of the CHARM (Characterization Module) concept precursor. KJ Series expanded to include redundant I/O modules and dual-channel AI/AO cards. Mass termination blocks such as the KJ4001X1-CK1 family were standardized to support 40-pin connectors, enabling higher-density field wiring in a single footprint.

Generation 3 (DeltaV v9–v12, 2008–2015): FOUNDATION Fieldbus and HART pass-through support integrated into KJ I/O modules. Termination blocks remained backward-compatible with Generation 2 wiring infrastructure, preserving installed base investments. The KJ4001X1-CK1 12P0732X122 is fully compatible with this generation.

Generation 4 / CHARM I/O (DeltaV v13–v15, 2015–present): Introduction of CHARM I/O cards (CIOC) and Electronic Marshalling. While CHARM I/O represents the strategic direction for new installations, the legacy KJ Series remains in active service at thousands of sites globally. Emerson continues to supply KJ Series spare parts, and third-party distributors such as DriveKNMS maintain stock of hard-to-find and discontinued KJ Series components.

DeltaV KJ Series Full Catalog & Functionalities (SKU List)

Analog Input (AI) Modules

KJ3002X1-BA1: 8-channel 4–20 mA HART AI module, single-ended, DeltaV Series 2

KJ3002X1-BB1: 8-channel 4–20 mA HART AI module, redundant-capable variant

KJ3221X1-BA1: 8-channel AI module with FOUNDATION Fieldbus H1 interface

KJ3221X1-BB1: Redundant FOUNDATION Fieldbus H1 AI module, 8-channel

Analog Output (AO) Modules

KJ3003X1-BA1: 8-channel 4–20 mA HART AO module, single-ended

KJ3003X1-BB1: 8-channel 4–20 mA HART AO module, redundant-capable

Digital Input (DI) Modules

KJ4001X1-BA1: 8-channel 24 VDC DI module, isolated, Series 2

KJ4001X1-BB1: 8-channel 24 VDC DI module, non-isolated, high-density

KJ4002X1-BA1: 16-channel 24 VDC DI module, non-isolated

KJ4002X1-BB1: 16-channel 120 VAC DI module, isolated

Digital Output (DO) Modules

KJ4005X1-BA1: 8-channel 24 VDC DO module, sourcing, 0.5 A per channel

KJ4005X1-BB1: 8-channel relay DO module, Form C contacts, 2 A

Termination & Wiring Accessories

KJ4001X1-CK1 12P0732X122: 40-pin mass termination block; passive field wiring interface for KJ Series I/O cards; compatible with DeltaV v6–v15 marshalling cabinets

KJ4001X1-CK2: 40-pin mass termination block, extended temperature variant for hazardous area enclosures

KJ4001X1-CK3: 40-pin mass termination block with integrated surge protection, IEC 61000-4-5 compliant

Communication & Controller Modules

KJ2003X1-BA1: DeltaV M-series controller module, 100 Mbps Ethernet, 750 DST capacity

KJ2003X1-BB1: DeltaV M-series controller, redundant pair configuration

KJ2005X1-BA1: DeltaV S-series controller, 1 Gbps Ethernet, 2500 DST capacity

Power Supply Modules

KJ4009X1-BA1: 24 VDC I/O bus power supply, 5 A, DIN rail mount

KJ4009X1-BB1: Redundant 24 VDC power supply module, auto-switchover

Sourcing Hard-to-Find & Obsolete DeltaV KJ Series Parts

A significant portion of the global DeltaV KJ Series installed base operates on hardware that Emerson has transitioned to limited or end-of-life support status. For plant operators committed to long-term operation of existing DeltaV architectures — particularly in facilities where a full migration to CHARM I/O is not economically viable — maintaining access to KJ Series spare parts is a critical operational requirement.

DriveKNMS maintains a dedicated inventory of KJ Series components, including passive termination blocks such as the KJ4001X1-CK1 12P0732X122, I/O modules, controller cards, and power supply units. All stock is sourced through verified industrial surplus and OEM channels. DriveKNMS provides lifecycle extension support for KJ Series hardware, including cross-reference identification for superseded part numbers, compatibility verification across DeltaV software versions, and expedited fulfillment for shutdown and turnaround (TAR) events.

Quality Control for the DeltaV KJ Series Range

KJ Series modules — particularly I/O cards with integrated backplane connectors and passive termination blocks with multi-pin mass termination interfaces — require systematic inspection protocols before deployment as spare parts. DriveKNMS applies the following quality control procedures to all KJ Series inventory:

Visual & Mechanical Inspection: All 40-pin connector housings are inspected for pin deformation, corrosion, and insulation damage. Termination blocks such as the KJ4001X1-CK1 12P0732X122 are verified for connector seating integrity and label legibility.

Backplane Bus Continuity Testing: I/O modules are tested for backplane connector continuity using a dedicated KJ Series test fixture that simulates the DeltaV I/O subsystem bus. Open circuits, short circuits, and impedance anomalies are flagged and quarantined.

Functional Verification: Active I/O modules (AI, AO, DI, DO) are powered and exercised through a simulated DeltaV controller environment. Channel-level signal accuracy is verified against Emerson factory specifications.

Firmware Revision Check: Controller and communication modules are inspected for firmware revision compatibility with the customer's DeltaV system version. Downgrade or upgrade paths are documented prior to shipment.

ESD & Packaging: All KJ Series modules are packed in anti-static bags with desiccant inserts and shipped in double-wall corrugated cartons rated for international freight.

© 2026 DriveKNMS. All trademarks belong to their respective owners. Specifications are for reference only and subject to change without notice. Verify all parameters against official documentation before installation.