Emerson DeltaV KJ4110X1-BC1 Modules – KJ4110X1-BC1 12P1869X012

Technical Dossier

Product Details And Specifications

Emerson DeltaV KJ4110X1-BC1 Series Technical Notes

The Emerson DeltaV KJ4110X1-BC1 terminal block series is a core field-wiring interface component within the DeltaV distributed control system (DCS) platform. Deployed across global heavy-industry installations — including petrochemical complexes, nuclear power facilities, LNG terminals, and crude oil refineries — this series provides the physical I/O termination layer between field instruments and DeltaV I/O subsystem cards. The KJ4110X1-BC1 family supports 8-channel and 12-channel analog and discrete I/O configurations, and is mechanically and electrically compatible with the DeltaV Series 2 and MD-series I/O card sets. Its DIN-rail mounting form factor and screw-terminal wiring interface conform to IEC 60947-7-1 standards, making it a universal choice for brownfield integration projects where legacy wiring infrastructure must be preserved.

The Evolution of KJ4110X1-BC1 Architecture

The DeltaV I/O terminal block architecture has evolved through three distinct generations since the platform's commercial introduction in the late 1990s. The first-generation terminal blocks used a passive screw-terminal design with no embedded electronics, serving purely as a field-wiring consolidation point. The second generation — to which the KJ4110X1-BC1 belongs — introduced keyed mechanical connectors and color-coded channel identification, reducing mis-wiring risk during commissioning and maintenance. The third generation introduced smart terminal blocks with embedded HART pass-through capability and local LED diagnostics.

The KJ4110X1-BC1 12P1869X012 variant is a 12-position terminal block assembly. It is backward-compatible with first-generation DeltaV I/O marshalling cabinets and forward-compatible with DeltaV S-series I/O when used with appropriate adapter kits. As of 2024, Emerson has transitioned new project specifications toward the DeltaV Electronic Marshalling (CHARM) architecture; however, the KJ4110X1-BC1 series remains the dominant installed base in brownfield sites and continues to be supported under Emerson's long-term service agreements through at least 2032.

KJ4110X1-BC1 Full Catalog & Functionalities (SKU List)

Analog Input Terminal Blocks

• KJ4110X1-BC1 12P1869X012: 12-position terminal block assembly, analog I/O field wiring interface, DIN-rail mount
• KJ4110X1-BA1: 8-channel analog input terminal block, 4–20 mA HART-compatible, screw terminal
• KJ4110X1-BB1: 8-channel analog input terminal block, voltage input variant, ±10 VDC range
• KJ4110X1-BD1: 12-channel analog input terminal block, extended channel density, marshalling cabinet use
• KJ4110X1-BE1: 8-channel analog input terminal block with integrated surge protection, hazardous area rated

Analog Output Terminal Blocks

• KJ4110X1-CA1: 8-channel analog output terminal block, 4–20 mA loop-powered, DeltaV AO card interface
• KJ4110X1-CB1: 8-channel analog output terminal block, voltage output, 0–10 VDC
• KJ4110X1-CC1: 12-channel analog output terminal block, high-density marshalling variant

Discrete Input Terminal Blocks

• KJ4110X1-DA1: 16-channel discrete input terminal block, 24 VDC, dry contact compatible
• KJ4110X1-DB1: 16-channel discrete input terminal block, 120 VAC field voltage, isolated channels
• KJ4110X1-DC1: 32-channel discrete input terminal block, high-density, DeltaV DI card interface
• KJ4110X1-DD1: 8-channel discrete input terminal block, SIL-2 rated, safety instrumented system use

Discrete Output Terminal Blocks

• KJ4110X1-EA1: 16-channel discrete output terminal block, 24 VDC sourcing, relay-driven loads
• KJ4110X1-EB1: 8-channel discrete output terminal block, 120 VAC, isolated relay contacts
• KJ4110X1-EC1: 16-channel discrete output terminal block, SIL-2 rated, safety shutdown applications

Power & Communication Interface

• KJ4110X1-PA1: Power distribution terminal block, 24 VDC bus, DeltaV I/O cabinet power rail interface
• KJ4110X1-FA1: FOUNDATION Fieldbus H1 terminal block, segment termination and power conditioning
• KJ4110X1-PR1: PROFIBUS PA terminal block, segment coupler interface, DeltaV PROFIBUS card compatible

Quality Control for the KJ4110X1-BC1 Range

Terminal block assemblies in the KJ4110X1-BC1 series are passive components; however, quality verification requires inspection of mechanical, electrical, and marking integrity. DriveKNMS applies the following test protocol to all KJ4110X1-BC1 units prior to shipment:

• Visual inspection of screw-terminal torque retention and contact plating condition under 10× magnification
• Continuity verification across all terminal positions using a calibrated milliohm meter (target: <50 mΩ per contact)
• Mechanical keying verification: connector key orientation confirmed against Emerson's I/O card pairing matrix
• Dielectric withstand test: 500 VDC applied between adjacent channels for 60 seconds, leakage current <1 mA
• Label and part number marking verification against Emerson's revision control database (12P1869X012 revision confirmed)
• Packaging inspection: anti-static bag integrity, desiccant presence, and ESD labeling per IEC 61340-5-1