ABB LXN1604-6 with order code 3BHL000986P7000 is an original DIN rail mount integrated 24V DC power unit paired with dedicated CEX-bus gigabit switching, purpose-built for full lifecycle ABB Ability System 800xA process automation control systems. Designed for standard 35mm TH35 DIN rail snap-fit installation, this compact all-in-one hardware solves core layout and power stability pain points of process control cabinets deployed in refineries, power plants, water treatment and continuous chemical production facilities. Process automation relies on steady 24V power for AC800M controllers, safety transmitters, flame detectors and ESD interlock hardware, alongside low-latency redundant inter-controller communication for cross-section process synchronization. Separate standalone power supplies and external switches waste valuable DIN rail space and introduce dual single-point failure risks; LXN1604-6 merges regulated 500W 24V DC power conversion and 4-port CEX-bus redundant switching into one slim DIN rail body. All stocked units are brand-new factory sealed genuine ABB hardware with traceable serial numbers and complete factory aging test reports; refurbished, cloned and disassembled counterfeit modules are strictly rejected to eliminate voltage drift, communication jitter and unplanned process shutdown hazards for 24/7 continuous process sites. Our warehouse holds permanent spot inventory with fast global door-to-door shipping and standard 12-month official manufacturer warranty for process automation integrators and end plant operators worldwide.
In large-scale 800xA process automation architecture, multiple redundant AC800M controller pairs are distributed across raw material pretreatment, reaction, separation and finished product storage control zones. All process safety signals, closed-loop regulation data and cross-cabinet equipment linkage logic rely on unified 24V power supply and CEX-bus communication backbone. Conventional narrow-input power units fail to stabilize output under severe grid fluctuation in remote process plants, while generic switches lack native CEX-bus HSR/PRP redundancy support. This DIN rail mounted 24V power unit delivers consistent clean DC output and zero-switchover-time redundant communication, becoming the standard core hardware for new process plant cabinet construction, DCS system renovation and emergency spare parts replacement.

Core Technical Parameters Focused on DIN Rail 24V DC Process Automation

1. Model & Order Code: LXN1604-6, 3BHL000986P7000
2. Mounting Standard: IEC 60715 standard 35mm DIN rail snap-fit mounting, no extra brackets required, quick tool-free installation
3. Wide Universal AC Input: 85–264V single-phase AC, 47–63Hz frequency, supports auxiliary 90–350V DC backup power input for UPS matching
4. Standard 24V DC Output: Rated stabilized 24.7V DC (industrial standard 24V), maximum continuous 20A output current, total 500W rated power, peak conversion efficiency up to 89%
5. Power Quality Performance: Ultra-low output ripple below 100mVp-p, multi-stage LC filtering and double-layer metal EMI shielding to suppress switching noise
6. Full Hierarchical Electrical Protection: Overload, short-circuit, overvoltage, over-temperature four-in-one hardware instant lockout plus multi-stage lightning surge suppression circuit
7. CEX-bus Communication Ports: 4×10/100/1000BASE-T gigabit industrial isolated RJ45 ports, native hardware accelerated HSR & PRP per IEC 62439-3 zero switchover redundancy
8. Maintenance Feature: DIN rail hot-swappable design, online module disassembly and replacement without cutting off full control cabinet power supply
9. Environmental Adaptability: Continuous operating temperature -25℃ ~ +70℃, storage range -40℃ ~ +85℃, IP20 cabinet protection, full-circuit anti-corrosion conformal coating for corrosive process workshops
10. Reliability & Compatibility: MTBF over 50,000 hours, native plug-and-play with PM860, PM861, PM866 AC800M series controllers, fully integrated with System 800xA Control Builder software

Core Advantages for DIN Rail Process Automation Control Cabinets

1. Standard DIN Rail Compact Design Maximizes Cabinet Space Utilization

The slim DIN rail form factor occupies only a single rail position, replacing two independent hardware units (separate power supply + industrial switch) to save over half cabinet installation space. For compact skid-mounted process dosing stations, wall-mounted pump control panels and narrow auxiliary process equipment cabinets with limited rail space, this integrated unit frees positions for safety relays, signal terminal blocks and flame detection I/O modules. Unified snap-fit DIN rail installation unifies cabinet layout aesthetics for standardized mass production of process automation control boxes and simplifies routine inspection and troubleshooting workflows for maintenance teams.

2. Stable Industrial Standard 24V DC Output Safeguards All Process Field Instrumentation

Nearly all process automation peripheral hardware including DCS CPUs, pressure/PH/temperature transmitters, toxic gas sensors and ESD safety relays adopt 24V DC power standard. Multi-stage active voltage stabilization and ripple filtering circuits maintain constant 24V DC output even during simultaneous startup of large compressors, furnace burners and transfer pumps that trigger severe grid voltage surges and dips. Clean low-noise 24V power eliminates sensor signal drift, false safety alarm and inaccurate closed-loop regulation, a critical requirement for hazardous petrochemical, pharmaceutical and power generation continuous process plants.

3. HSR/PRP Zero-Switchover Redundant CEX-bus Prevents Process Communication Outage

Process automation cannot tolerate brief network interruption that splits multi-controller synchronization and triggers full-plant emergency shutdown. The DIN rail power unit embeds hardware parallel redundancy to transmit identical process safety data over two independent physical paths simultaneously. If a port, connecting cable or internal circuit fails, the backup channel takes over instantly with zero packet loss and zero control logic offset, achieving 99.999% five 9’s ultra-high network availability mandatory for 24/7 process operation. IEEE 802.1p multi-layer QoS reserves exclusive gigabit bandwidth for emergency shutdown, overpressure trip and flame failure detection signals to guarantee priority safety response.

4. Hot-Swap DIN Rail Maintenance Eliminates Unplanned Process Downtime

Most process facilities run uninterrupted year-round and cannot fully power down control cabinets for hardware overhaul. The snap-on DIN rail structure allows technicians to extract and replace the LXN1604-6 power unit online with cabinet mains energized; all reactor interlock, pump regulation and gas monitoring control loops remain fully operational throughout maintenance, avoiding massive raw material waste and production throughput losses caused by hardware replacement shutdown. Full-circuit conformal coating resists dampness, dust and acidic chemical vapors unique to process plant environments, preventing intermittent power and communication faults from long-term corrosion-induced circuit oxidation.

Typical Process Automation Application Scenarios

This DIN rail mounted 24V DC ABB power unit is the core standard hardware for all System 800xA process automation control systems:

• Thermal, hydro and nuclear power plant boiler, turbine and flue gas denitrification main and auxiliary control cabinets
• Crude oil refineries, natural gas compressor stations and LNG liquefaction plant ESD & Fire&Gas safety control racks
• Municipal large-scale combined tap water intake, filtration, disinfection and sewage sludge dewatering process control panels
• Fine chemical, pharmaceutical sterile batch synthesis and hazardous reaction workshop multi-controller redundant cabinet clusters
• Remote unattended pipeline monitoring skids, alpine water gathering stations and coastal offshore platform auxiliary DCS control boxes

In-Stock Supply, Global Logistics & 12-Month Genuine Warranty

We maintain abundant ready spot inventory of original ABB LXN1604-6 DIN rail 24V DC power units for immediate order dispatch. Global door-to-door express delivery via DHL, FedEx, UPS and TNT covers all process industrial regions; domestic orders ship within 1–3 working days, overseas project sites receive goods in 3–7 working days. Each module is individually packed in original ABB anti-static shielding bags and thick foam shockproof export cartons to protect DIN rail contact pins and internal power/switching circuits during long sea and air transit. Complete customs clearance documents including commercial invoices and certificates of origin are provided to simplify cross-border import declaration procedures worldwide. Every DIN rail power unit carries a full 12-month official manufacturer warranty. Our professional process automation technical team provides 7×24-hour online remote guidance covering DIN rail cabinet layout design, process system power load matching, HSR/PRP redundant CEX-bus topology configuration and daily power communication fault diagnosis, delivering full-cycle reliable hardware procurement solutions for global ABB 800xA process automation control system customers.