Important Correction Statement

ABB LXN1604-6 (3BHL000986P7000) is NOT a CEX-bus switch / CEX-bus interconnection module. The real CEX-bus dedicated hardware for ABB 800xA system: BC810 interconnection unit, TP857 CEX-bus baseplate, TB820 expansion module, CI series communication cards. LXN1604-6 is a DIN rail redundant industrial power supply. Its core function is to supply stable uninterrupted 24.7VDC power to all CEX-bus equipment, AC800M controllers, NE800 Ethernet switches and safety I/O modules, ensuring reliable CEX-bus data transmission.

ABB LXN1604-6 (3BHL000986P7000) Redundant DIN Rail Power Supply

Stable Power Support for ABB 800xA CEX-Bus System | 100% Original ABB Quality, In Stock, Global Fast Shipping

1. Product Overview

ABB LXN1604-6, part number 3BHL000986P7000, belongs to ABB Convert Select heavy-duty switching power supply, specially matched with ABB Ability System 800xA and AC800M DCS platforms.

Key Role in CEX-bus Architecture

All CEX-bus related hardware relies on this power module for clean low-ripple DC power:

1. BC810 CEX-bus interconnection units, TP857 baseplates, TB820 expansion modules
2. Redundant AC800M CPU controllers, S800 I/O stations, CI communication interface boards
3. NE800 industrial Ethernet switches, RB safety relays, field process transmitters

Equipped with dual redundant input, full PCB anti-corrosion conformal coating and complete multi-layer electrical protection, it avoids CEX-bus communication interruption, signal distortion and controller offline caused by power fluctuation, voltage sag or short circuit. We supply brand-new original ABB modules with complete factory test reports, sufficient spot inventory, worldwide express delivery and 12-month official manufacturer warranty.

2. Core Technical Specifications

表格

Parameter Item	Standard Specification
Full Part Code	LXN1604-6 / 3BHL000986P7000
Rated DC Output	24.7VDC, 20A, total power 500W, ultra-low ripple for CEX-bus signal stability
Dual Redundant Input	Dual isolated channels: AC 85–264V universal mains / DC 90–350VDC UPS backup
Efficiency	Up to 93% high efficiency, low heat accumulation in dense CEX-bus racks
Operating Temperature	-20℃ ~ +70℃ continuous stable operation (derate above 55℃)
Humidity & Corrosion Resistance	5%–95% RH non-condensing, full PCB conformal coating against moisture, salt mist and chemical vapor
Mounting	Standard 35mm DIN rail snap-on metal finned housing, IP20 for cabinet internal use
Redundancy Design	Built-in decoupling diodes, microsecond seamless switch between two input sources, no extra redundant module required
Parallel Function	Multiple units can be paralleled to build N+1 redundant power system for multi-segment CEX-bus distributed racks
Full Protection Circuit	OVP overvoltage, OCP overcurrent, hiccup auto-recovery short-circuit protection, OTP over-temperature shutdown, UVP undervoltage lockout, multi-stage EMC surge filter
Status Indicator	Power OK green LED + dual input fault alarm light for on-site cabinet inspection
Dimension & Weight	194 × 113.6 × 138 mm, approx. 2.8kg
Certifications	CE, UL, IEC61010, fully compatible with ABB 800xA CEX-bus communication architecture

3. Core Advantages to Stabilize CEX-bus Communication

3.1 Low-Ripple Clean DC Power Prevents CEX-bus Signal Distortion

Optimized soft-switching circuit outputs noise-free 24V power, eliminates voltage surge and high-frequency interference that lead to CEX-bus packet loss, signal reflection and intermittent communication faults. It guarantees real-time stable data exchange between AC800M master controllers and BC810 CEX-bus expansion segments.

3.2 Dual Redundant Input Eliminates Total CEX-bus System Shutdown Risk

Two fully separated input terminals support dual mains + UPS dual backup power supply. When one power source fails or fluctuates, the module switches to backup power within microseconds without cutting power to CEX-bus interconnection hardware and redundant controllers. Critical for process industries to avoid whole production line control paralysis triggered by single power supply failure. Built-in decoupling diodes save cabinet space without external redundant accessories.

3.3 Anti-Humidity Conformal Coating Solves Intermittent CEX-bus Faults in Harsh Workshops

The entire PCB is coated with industrial anti-corrosion protective film, isolating damp steam, acid mist and salt fog in chemical plants, hydropower stations and coastal factories. Prevent circuit pin oxidation and leakage current drift, which are major causes of periodic CEX-bus disconnection in humid control cabinets.

3.4 High Efficiency Reduces Heat Load for Densely Arranged CEX-bus Racks

CEX-bus cabinets are densely filled with BC810, TP857, CPU and communication modules; excessive heat easily triggers equipment over-temperature protection and communication jitter. 93% high efficiency greatly reduces heat generation, lowering temperature difference inside the cabinet to avoid condensation on CEX-bus circuit boards and extend hardware service life.

3.5 Complete Multi-Layer Protection Safeguards High-Value CEX-bus Components

• Input undervoltage lockout: Block unstable low voltage from damaging AC800M CPUs and BC810 CEX-bus units
• Hiccup short-circuit auto-recovery: Automatically restore output after field wiring short-circuit is removed, no permanent burnout of power supply or backend CEX-bus hardware
• Over-temperature thermal shutdown: Self-protection when cabinet ventilation is insufficient to avoid chain equipment damage
• Multi-stage EMC filter: Suppress harmonic interference from medium voltage inverters and large motors to maintain stable CEX-bus communication in high-noise industrial sites

3.6 Modular DIN Rail Design for Easy Maintenance & CEX-bus System Expansion

Push-in quick wiring terminals support single-unit replacement without powering off the entire rack, minimizing CEX-bus communication downtime during maintenance. Multiple LXN1604-6 can be paralleled freely to expand power capacity, suitable for factory renovation and large multi-rack CEX-bus system capacity expansion projects.

4. Typical Application Scenarios with ABB 800xA CEX-bus System

1. Thermal & Hydropower Plant DCS Racks: Redundant power supply for boiler/turbine AC800M controllers and BC810 CEX-bus interconnection units
2. Chemical & Petrochemical SIS Safety Cabinets: Uninterrupted power backbone for reactor safety control CEX-bus architecture
3. Metallurgy Rolling Mill Auxiliary Control Cabinets: Stable power for CEX-bus communication modules matched with PCS6000 medium voltage drives
4. Cement & New Energy Industry 4.0 Production Lines: Rotary kiln DCS cabinet power supply for CEX-bus data transmission hardware
5. Sewage Treatment Automation: Centralized S800 I/O station power source for CEX-bus expansion baseplates

5. Original Stock & Global Shipping Service

All ABB LXN1604-6 / 3BHL000986P7000 power modules we supply are 100% genuine original factory products, equipped with sealed original packaging and official full-performance test certificates, covered by 12-month manufacturer warranty against manufacturing defects under rated operating conditions. Our warehouse keeps abundant permanent spot stock to handle urgent CEX-bus cabinet maintenance orders and bulk procurement for global industrial EPC automation projects. We adopt anti-static, shockproof and moisture-proof export packaging to protect coated circuit boards during long-distance sea and air transportation. We cooperate with DHL, FedEx and UPS to provide fast worldwide delivery covering Europe, North America, Southeast Asia, the Middle East and all major process industrial regions, with one-stop customs clearance service. Supporting services include pre-sales CEX-bus rack power load calculation, redundant power topology design, dual-input wiring consultation, post-delivery DIN rail installation, redundancy function debugging and overall commissioning of complete ABB 800xA CEX-bus automation system.

Product Value Summary

Genuine ABB LXN1604-6 redundant power supply acts as the reliable power foundation of ABB 800xA CEX-bus communication architecture. Its zero-interruption dual redundant power supply, low-noise output, anti-humidity anti-corrosion and full electrical protection effectively prevent CEX-bus communication collapse, controller offline and expensive bus module burnout caused by inferior power supplies, significantly cutting unplanned production downtime and long-term maintenance costs. With sufficient spot inventory, efficient global delivery and complete original warranty, it is the standard supporting power spare part for all ABB CEX-bus process automation projects.

Supplementary Note

If you need real CEX-bus switching/interconnection hardware, choose ABB official models: BC810 CEX-bus interconnection unit, TP857 CEX-bus baseplate, TB820 expansion module. LXN1604-6 only provides stable power supply for the above CEX-bus equipment.