Description
Emerson KJ4003X1‑BH1‑BH2
Technical Specifications: Input 85VAC~264VAC, 47‑63Hz. Single module output 24VDC, rated current 12A. Redundant combined maximum output 24A. Isolation rating 2500VAC. Operating temperature ‑40°C to +70°C.
Functional Features: Automatic load balancing between two power units. Non‑interrupting switchover upon single module failure. Complete built‑in protection: overvoltage, overcurrent, short circuit, overtemperature. Hot‑swap support. Real‑time power status upload to DeltaV control network.
Application Scenarios: Large‑scale chemical plant DCS racks, pulp mill control cabinets, water treatment large pump control systems, oil refinery heavy‑load I/O racks, metallurgical continuous process control.
Performance Parameters: Power efficiency ≥91%. Output ripple <50mV. Fault switchover time less than 20ms. Total assembly MTBF 880000 hours.
Material Composition: FR‑4 flame retardant printed circuit board. UL94‑V0 flame resistant plastic housing. Aluminum heat sink, high frequency transformer, power chips, gold‑plated copper backplane pins.
Structural Features: Dual plug‑in module design for standard DeltaV rack. Each module has independent front panel indicators and locking latches. Internal physical isolation between high voltage input and low voltage output circuits.
Working Principle: Two modules run in parallel sharing load. Each module continuously monitors output parameters and internal temperature. Once one module triggers fault protection, the other module takes full load without power drop. Diagnostic data transmits to DeltaV controller via backplane communication.
Installation Requirements: Install in DeltaV compatible redundant rack. Ensure cabinet grounding resistance less than 4Ω. Maintain air flow channel around modules. Do not block ventilation holes. Perform redundant function test after installation.
Usage Notes: Do not operate the pair without matching backplane. Keep away from conductive dust and corrosive vapor. Do not replace modules with non‑specified alternative models. Regularly check cabinet temperature and dust accumulation.
