Emerson KJ4001X1-BE1

Core Technical Performance Parameters

• LocalBus Input Power Specification: 12.6VDC, maximum 8A total input from upstream power carrier
• Aggregated Field Power Bus Rating: Max 30VDC, 6.5A total output across all 8 module slots
• Slot Quantity: 8 independent module mounting positions per carrier unit
• Backplane Communication Protocol: DeltaV proprietary LocalBus, compatible with HART and FOUNDATION Fieldbus I/O modules
• Environmental Operating Temperature: -40°C ~ +70°C
• Shock Resistance: 10g half-sine wave shock, 11ms duration
• Vibration Standard: 1mm pp (2–13.2Hz), 0.7g acceleration (13.2–150Hz)
• Air Contamination Grade: ISA-S71.04 Class G3 heavy industrial pollution
• Relative Humidity: 5% ~ 95% non-condensing
• Safety Certifications: ATEX II 3G Ex ec IIC Gc, FM Class I Div.2 Groups A/B/C/D
• Single Unit Net Weight: 1.6 lbs (726g)
• Alternate Part Codes: 12P0818X072, 12P0818X092, VE4050S2K1C0

Functional Features

1. Integrated full-length metal shielding bar bonded to cabinet protective earth to eliminate variable frequency drive and motor cabinet EMI noise
2. 8 independent standardized module slots supporting all DeltaV M-series analog input, analog output, discrete I/O, serial and fieldbus communication modules
3. Passive backplane bus routes LocalBus communication signals and shared field power supply to each slot without active processing chips
4. Built-in over-current fuse protection for shared field power bus to avoid single module short-circuit affecting all 8 slots
5. Keyed slot positioning design supports D4/D6 different module terminal block mechanical locking compatibility
6. Rack mounting rail structure compatible with standard 19-inch industrial control cabinet vertical installation
7. Unified earth bus terminal block for centralized cabinet grounding of all installed modules
8. Module insertion guide rails to prevent misalignment during hot-swap replacement

Working Principle

Material Composition & Structural Characteristics

• Main Frame: High-strength cold-rolled steel sheet with anti-rust electrophoretic black coating
• Backplane Circuit: Single-layer FR4 PCB with thick copper power distribution traces
• EMI Shielding Bar: Continuous extruded aluminum alloy strip with conductive anti-oxidation surface treatment
• Mounting Guide Rails: Molded flame-retardant ABS plastic
• Power Bus Terminals: Tinned copper spring-cage wiring terminals

Installation Requirements

1. Vertical mounting on DeltaV standard cabinet rail, paired with left-side KJ4002X1-BA1 main vertical carrier rack
2. Connect carrier ground terminal to cabinet earth bar with minimum 6mm² copper wire
3. Maintain 30mm vertical ventilation gap above and below carrier unit for heat dissipation
4. Hazardous Zone 2 installation complies with DeltaV Zone 2 hardware installation manual
5. All LocalBus and field power wiring must use shielded power cables with single-point grounding

Application Scenarios

Operation & Maintenance Precautions

1. Do not disassemble integrated metal shielding bar or backplane circuit board
2. Inspect internal power bus fuses quarterly; replace damaged fuses with Emerson original matching specifications only
3. Avoid installing carrier unit adjacent to large AC frequency converters without additional shielding partition
4. All module hot swap operations must fully open module latch before extraction
5. Prevent conductive dust accumulation inside carrier slot area; clean with dry compressed air every half year