You are here:
- Home
- Product
- Others / Spares
- Emerson KJ4001X1-HC1 12P0831X072 DeltaV M-Series LocalBus Left Extender
SKU: KJ4001X1-HC1Â 12P0831X072
Emerson KJ4001X1-HC1 12P0831X072 DeltaV M-Series LocalBus Left Extender
The Emerson KJ4001X1-HC1 (12P0831X072) is a DeltaV M-series LocalBus Left Extender designed to expand DCS I/O carrier configurations. It supports high-speed data continuity across the backplane, operates between -40°C and +70°C, and provides a robust, plug-and-play solution for extending LocalBus connectivity in industrial automation.
Technical Overview and System Expansion
The Emerson KJ4001X1-HC1 (part number 12P0831X072) serves as a critical infrastructure component for the DeltaV M-series Distributed Control System (DCS). This LocalBus Left Extender facilitates the physical and electrical expansion of the I/O subsystem by bridging communication between adjacent power and controller carriers. Because the DeltaV architecture relies on a continuous LocalBus for data exchange and power distribution, this module ensures that signals transition effectively across multi-carrier configurations.
Engineering Design and Signal Integrity
Emerson engineered the KJ4001X1-HC1 to maintain high-speed data transmission while resisting the electrical noise common in industrial environments. The module mounts specifically on the left side of the carrier to extend the bus interface to the preceding rack section. Furthermore, its robust construction allows it to operate reliably in harsh conditions, protecting the continuity of the DCS network. Since the module features a plug-and-play design, technicians can expand the system capacity without performing complex manual wiring or significant system re-engineering.
Key Technical Characteristics
- Brand:Â Emerson / Fisher-Rosemount
- Model Number:Â KJ4001X1-HC1
- Part Number:Â 12P0831X072
- Product Type:Â LocalBus Left Extender
- System Platform:Â DeltaV M-series I/O Subsystem
- Input Power:Â 5.0 VDC at 550 mA (Backplane)
- Operating Temperature: -40°C to +70°C (-40°F to +158°F)
- Relative Humidity:Â 5% to 95%, non-condensing
- Dimensions:Â 4.7 cm x 16.7 cm x 4.4 cm
- Weight:Â 0.14 kg
Installation and Hardware Compatibility
The KJ4001X1-HC1 integrates seamlessly with M-series 2-wide and 8-wide carriers. Due to its specialized “Left Extender” designation, it completes the bus connection on the leftmost edge of an expanded I/O assembly. Moreover, this module supports the DeltaV communication protocol natively, which guarantees that data packets from connected I/O modules reach the controller without latency or degradation. Its compact profile ensures that it fits within standard DIN-rail mounted enclosures while leaving ample space for field wiring.
You may also like
The Emerson KJ3001X1-BG1 is a DeltaV SIS safety output module. It features 12P0557X162/VE4002S1T1B2 hardware for SIL-rated industrial safety and emergency shutdown control.
Emerson KJ1501X1-BC5 System Dual DC Power Supply
The Emerson KJ1501X1-BC5 is a DeltaV SIS dual DC power supply module. It delivers stable 5.1V and 3.4V outputs for safety logic solvers in extreme industrial environments.
Emerson KJ3001X1-BB1Â 12P0550X132Â VE4001S2T2 Digital Input Module
The Emerson KJ3001X1-BB1 (12P0550X132) is a DeltaV SIS Digital Input Module. It provides reliable discrete signal monitoring for safety systems in rugged industrial environments.
Emerson KJ3222X1-BK1 12P4705X032 SE4003S2B1 Analog Input Module
The Emerson KJ3222X1-BK1 is an 8-channel DeltaV analog input module. It provides 24-bit resolution for 4-20mA signals in M-series I/O subsystems.
Emerson 1X00691H01 Ovation PLC Module
The Emerson 1X00691H01 is a specialized 0.9kg interface module for Ovation and DeltaV SIS systems. It provides high-precision data acquisition and real-time diagnostics for industrial DCS environments. This brand-new unit ensures reliable signal processing in power and water utility applications.
Emerson KJ3201X1-BA3 Diginal Input Module
The Emerson KJ3201X1-BA3 is a Series 2 24V DC Digital Input Card for DeltaV systems. It features 16 channels, G3 environmental protection, and a wide temperature range. This 0.4kg module provides reliable dry contact signal monitoring for critical industrial automation.
Emerson KJ3001X1-BA1Â 1290549X152 Digital Input Module
Emerson KJ3001X1-BA1 1290549X152 offers isolated digital inputs for DeltaV SIS safety systems. Ensure high-speed accuracy and plant safety. Buy brand new stock!
Emerson 1X00781H01L Din-rail Power Supply Module
The Emerson 1X00781H01L is a robust DIN-rail power supply module designed for DeltaV SIS and Ovation DCS platforms. This 0.9kg unit provides regulated DC power for safety-critical industrial automation and process control systems.
Emerson 1X00024H01 WH1-2FF Power Supply Module
The Emerson 1X00024H01 WH1-2FF is a high-reliability power supply module for DeltaV SIS and Ovation systems. It provides 0.9kg of robust hardware for critical safety process control.
Emerson Ovation 1C31192G01 Analog Output Module
The Emerson 1C31192G01 is a precision analog output module for Ovation and DeltaV SIS systems. It provides 0.32kg of durable hardware for accurate valve and motor control.
Ovation 1C31129G03 Analog Output Module
The Emerson 1C31129G03 is a precision Ovation Analog Output module designed for high-accuracy control of field actuators and valves. Featuring isolated signal paths and advanced loop diagnostics, this 4-20 mA module ensures stable and reliable process regulation within complex Distributed Control System architectures.
1X00188H01 Ovation PLC Interface Control Module
The Emerson 1X00188H01 is a high-performance Ovation PLC module designed for precise data acquisition and process control. Featuring a rugged cavity insert design and advanced diagnostics, this module ensures seamless integration within DeltaV SIS and Ovation DCS environments to maximize industrial system reliability.


























