Description
Overview
The Emerson KJ4001X1-CB1 (12P0683X082) is a high-performance 8-channel 24 VDC high-side Remote Termination Unit (RTU) designed for integration with DeltaV™ M-series and S-series Distributed Control Systems. It functions as a reliable interface between digital output cards and field devices such as solenoids, relays, and indicator lights, simplifying wiring with a mass-termination connection to the I/O module.
This module emphasizes operational reliability and maintenance efficiency, featuring individually fused channels, high-side switching architecture, and visual diagnostic indicators to minimize downtime.
Key Features
High-Side Switching Architecture
Ensures each load is referenced to ground when inactive, enhancing safety and preventing accidental activation during faults.
Per-Channel Fusing
Each of the 8 outputs includes individual fuses, isolating faults without affecting other channels.
Visual Diagnostics
LED indicators show channel status, and fuse indicators provide immediate identification of blown fuses.
Modular Installation
Plug-and-play design allows the termination unit to be replaced without disturbing complex I/O carrier wiring.
Industrial-Grade Resilience
Designed for harsh environments with conformal coating protection against moisture and chemicals, operating between –40°C to +70°C.
Compatibility
Optimized for DeltaV M-series and S-series carriers, compatible with digital output cards requiring high-side switching.
Technical Specifications
| Feature |
Specification |
| Model Number |
KJ4001X1-CB1 |
| Part Number |
12P0683X082 |
| Channels |
8 |
| Nominal Voltage |
24 VDC |
| Maximum Current |
1.0 A per channel |
| Input Power |
250 VAC / 60 VDC, 1 A per channel |
| Mounting |
DeltaV M-series / S-series carrier |
| Environmental Rating |
-40°C to +70°C, Shock 10 g / 11 ms, Vibration 1 mm peak / 0.7 g 2–150 Hz |
| Airborne Contaminant Resistance |
ISA-S71.04 Class G3 |
| Hazardous Area Certification |
ATEX, UL, FM Class 1 Div 2 |
Applications
Ideal for oil & gas, chemical, and industrial process automation, the KJ4001X1-CB1 is suitable for solenoid actuation, relay control, and indicator monitoring where high reliability and clear diagnostics are essential.
Comparison with BA2 Series
While similar to the BA2 series, the CB1 integrates updated internal components and specific fuse ratings tailored to newer DeltaV digital output cards. Engineers should verify field device load requirements against fuse ratings before replacement.
FAQ
Can this unit be replaced while the system is powered?
No, it must only be installed or removed when system power is off.
Does this module require calibration?
No calibration is necessary, and the unit contains no user-serviceable parts.
What is the maximum current per channel?
Each channel supports up to 1.0 A, depending on the fuse installed.
