Emerson KJ4101X1-BC1 / 12P1872X012 – DeltaV Series Power Supply Carrier Module
Engineering Background: The Emerson DeltaV distributed control system (DCS) is the industry benchmark for process automation in oil & gas, chemical, pharmaceutical, and power generation facilities. The power supply carrier is a foundational infrastructure component that provides stable, conditioned DC power distribution to I/O subsystems and controller nodes within the DeltaV architecture.
Product Positioning: The KJ4101X1-BC1 (cross-reference: 12P1872X012) is a dedicated power supply carrier designed for DeltaV S-series and M-series controller cabinets. It serves as the mechanical and electrical interface between the DeltaV power supply module and the backplane bus, ensuring reliable power delivery with hot-swap capability for zero-downtime maintenance in critical process environments.
Complete Technical Specifications
- Manufacturer: Emerson Electric / Emerson Automation Solutions
- Part Number: KJ4101X1-BC1
- Cross-Reference / Alternate P/N: 12P1872X012
- Product Family: DeltaV DCS – Power Distribution Subsystem
- Module Type: Power Supply Carrier / Backplane Power Interface
- Form Factor: DIN-rail / cabinet-mount carrier card
- Compatibility: Emerson DeltaV S-series, M-series controller and I/O cabinets
- Bus Interface: DeltaV proprietary backplane power bus
- Hot-Swap Support: Yes – supports live insertion/removal per DeltaV architecture
- Operating Temperature: 0°C to +60°C (32°F to 140°F)
- Storage Temperature: -40°C to +85°C
- Relative Humidity: 5% to 95% non-condensing
- Weight: Approx. 220 g
- Certifications: CE, UL/cUL (per DeltaV system certification)
- Country of Origin: USA
Proven Application Environments
- Oil & Gas upstream/midstream/downstream process control cabinets
- Chemical and petrochemical plant DCS power distribution racks
- Pharmaceutical manufacturing (FDA 21 CFR Part 11 compliant DeltaV systems)
- Power generation and utilities control rooms
- Pulp & paper and mining automation infrastructure
- Water/wastewater treatment facility SCADA-DCS hybrid architectures
Engineering Advantages
- Zero-Downtime Maintenance: Hot-swap carrier design allows power supply replacement without process interruption
- Redundancy Ready: Supports N+1 power supply redundancy configurations within DeltaV cabinets
- Backplane Isolation: Provides electrical isolation between power supply output and backplane bus, protecting downstream I/O modules
- Mechanical Keying: Proprietary connector keying prevents incorrect module insertion
- Status Indication: Integrated LED status indicators for power-good and fault conditions
- Compact Footprint: Optimized carrier geometry maximizes cabinet density
System Architecture & Signal Flow
Within a DeltaV cabinet, the KJ4101X1-BC1 carrier mounts directly to the cabinet backplane rail. The compatible DeltaV power supply module (e.g., KJ4001X1-BA1) seats into the carrier, which routes conditioned 24 VDC (or 48 VDC depending on configuration) to the backplane power bus. The carrier’s internal bus bars distribute power to all populated I/O module slots, while the fault relay output connects to the DeltaV system alarm bus for centralized fault monitoring. In redundant configurations, two carriers and two power supply modules operate in load-sharing mode with automatic failover.
Sourcing & Quality Verification
- Condition: Genuine Emerson OEM hardware – new surplus or refurbished-to-spec
- Inspection: Each unit undergoes visual inspection, connector integrity check, and functional power-on verification prior to shipment
- Traceability: Original Emerson part labels and serial numbers intact
- Packaging: Anti-static ESD bag + foam-lined carton for international transit
- Warranty: 12-month Konmask operational warranty
Procurement Process
- Submit your inquiry or place order directly on Konmask.com
- Receive stock confirmation and proforma invoice within 24 hours
- Payment via T/T, PayPal, or trade assurance
- Export documentation (commercial invoice, packing list, COO) provided for customs clearance
- DHL / FedEx / UPS express delivery – typical transit 3–7 business days worldwide
- Post-delivery technical support available via email or WhatsApp
Technical FAQ
Q: Is KJ4101X1-BC1 the same as 12P1872X012?
A: Yes. 12P1872X012 is the Emerson internal manufacturing part number; KJ4101X1-BC1 is the commercial ordering part number. Both refer to the identical hardware.
Q: Which DeltaV power supply modules are compatible with this carrier?
A: The KJ4101X1-BC1 carrier is designed for use with Emerson DeltaV KJ4001X1-series power supply modules. Please confirm your cabinet revision with our technical team before ordering.
Q: Can this carrier be used in a redundant power configuration?
A: Yes. DeltaV supports N+1 redundant power supply configurations. Two KJ4101X1-BC1 carriers with two power supply modules can be installed in the same cabinet for automatic failover.
Q: What is the lead time for out-of-stock units?
A: Typical sourcing lead time is 2–4 weeks for units not in immediate stock. Contact us for current availability.
Q: Do you provide export documentation for customs?
A: Yes. We provide full export documentation including commercial invoice, packing list, and certificate of origin for all international shipments.
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