Emerson DeltaV KJ4001X1 Modules – KJ4001X1-CJ1 12P1902X062

Technical Dossier

Product Details And Specifications

Emerson DeltaV KJ4001X1 Series Technical Notes

The Evolution of KJ4001X1 Architecture

The KJ4001X1 terminal block series was introduced as part of Emerson's DeltaV S-series I/O subsystem, which succeeded the earlier DeltaV M-series architecture in the mid-2000s. The S-series represented a structural shift from card-mounted screw terminals to a decoupled terminal block and I/O card model, enabling field wiring to remain undisturbed during card replacement — a significant operational improvement for brownfield retrofit projects.

Early revisions of the KJ4001X1 were designed for compatibility with 8-channel analog input cards such as the KJ3002X1-BA1 and KJ3001X1-BA1. Subsequent hardware revisions introduced enhanced EMI shielding, revised latch mechanisms for improved card seating reliability, and updated materials for extended temperature range compliance. The 12P1902X062 sub-assembly designation identifies a specific revision of the terminal block PCB and connector housing, distinguishing it from earlier 12P1902X060 and 12P1902X061 variants which used different latch and bus connector specifications.

As the DeltaV platform has matured into its DeltaV v14 and v15 software generations, the underlying S-series hardware — including the KJ4001X1 terminal block — has remained mechanically and electrically compatible, though Emerson has progressively shifted new project specifications toward the CIOC (Charm I/O Card) and Electronic Marshalling architecture. This transition means the KJ4001X1 series is now firmly in its maintenance and lifecycle-extension phase, with no new hardware revisions anticipated. Long-term support for existing installations is the primary commercial driver for this product line.

KJ4001X1 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked components within the Emerson DeltaV KJ4001X1 terminal block and associated S-series I/O subsystem. All models listed are confirmed members of this hardware family.

Terminal Block Assemblies

• KJ4001X1-CJ1 12P1902X062: Standard 8-channel S-series terminal block assembly, current production revision, screw-clamp field wiring termination.
• KJ4001X1-BA1 12P1902X060: Earlier revision terminal block, compatible with first-generation S-series I/O cards, superseded by CJ1 revision.
• KJ4001X1-CA1 12P1902X061: Intermediate revision with updated latch mechanism; field-interchangeable with BA1 in most configurations.
• KJ4001X1-DA1 12P1902X063: Intrinsically safe (IS) variant terminal block for use in hazardous area Zone 1/Division 1 applications.
• KJ4001X1-EA1 12P1902X064: High-density terminal block for 16-channel I/O card pairing; requires specific backplane slot assignment.

Analog Input (AI) I/O Cards

• KJ3002X1-BA1: 8-channel 4–20 mA analog input card, HART-enabled, primary pairing card for KJ4001X1-CJ1 terminal block.
• KJ3001X1-BA1: 8-channel analog input card, non-HART variant, used in legacy DeltaV S-series configurations.
• KJ3222X1-BA1: 8-channel thermocouple/RTD analog input card, compatible with KJ4001X1 terminal block family.

Analog Output (AO) I/O Cards

• KJ3003X1-BA1: 8-channel 4–20 mA analog output card, HART-enabled, standard pairing for AO terminal block assemblies.
• KJ3004X1-BA1: 8-channel analog output card, non-HART, used in cost-optimized S-series panel builds.

Digital Input (DI) I/O Cards

• KJ3221X1-BA1: 8-channel 24 VDC digital input card, dry contact and wet contact configurable.
• KJ3211X1-BA1: 8-channel 120 VAC digital input card for legacy field device compatibility.

Digital Output (DO) I/O Cards

• KJ3212X1-BA1: 8-channel 24 VDC digital output card, sourcing type, standard for solenoid valve and relay applications.
• KJ3213X1-BA1: 8-channel relay output card, Form C contacts, used for high-current switching applications.

Controller & Communication Modules

• KJ2003X1-BA1: DeltaV S-series controller module, primary CPU for S-series subsystem; manages I/O card communication via internal bus.
• KJ2005X1-BA1: Redundant controller module, paired with KJ2003X1-BA1 for fault-tolerant control configurations.
• KJ2201X1-BA1: DeltaV network interface card (NIC), provides Ethernet connectivity between controller and DeltaV workstation network.

Sourcing Hard-to-Find & Obsolete KJ4001X1 Parts

DriveKNMS maintains a dedicated inventory of KJ4001X1 series terminal blocks and associated S-series I/O cards, sourced through verified secondary market channels, decommissioned plant asset recovery, and long-term stocking agreements. All units are catalogued by revision code and sub-assembly part number to ensure exact-match replacement without field modification. For end-users operating DeltaV S-series systems under long-term service agreements or in jurisdictions where system modification requires regulatory re-certification, exact-revision replacement is a compliance requirement, not a preference. DriveKNMS's revision-level inventory management directly addresses this requirement.

Quality Control for the KJ4001X1 Range

Terminal block assemblies in the KJ4001X1 series present specific failure modes that require targeted inspection protocols beyond standard visual examination. DriveKNMS applies the following test procedures to all KJ4001X1 units prior to dispatch: