1. Product Overview

ABB LXN1604-6, material number 3BHL000986P7000, belongs to ABB Convert Select heavy-duty DIN rail switching power supply, purpose-built for ABB Ability System 800xA / AC800M DCS, UNITROL excitation and PCS6000 medium voltage drive systems. Core differentiation: enhanced anti-humidity, anti-corrosion hardening design, delivering ultra-stable 24.7VDC / 500W power output for controllers, I/O modules, industrial Ethernet switches, HMI and safety interlock equipment in high-humidity, damp, corrosive industrial workshops. Native dual redundant input eliminates single-point power outage risk for critical process control loops. We supply 100% brand-new genuine original ABB units, full spot inventory, fast global delivery and standard 12-month factory warranty.

2. Core Technical Specifications (Humid Environment Focus)

表格

Parameter Item	Standard Specification
Full Part Code	LXN1604-6 / 3BHL000986P7000
Rated Output	24.7VDC, 20A, total power 500W
Dual Redundant Input	AC 85–264V universal mains / DC 90–350VDC battery dual isolated channels
Efficiency	Up to 93% high efficiency, low heat accumulation in sealed humid cabinets
Operating Temperature	-20℃ ~ +70℃ continuous stable operation (derating above 55℃)
Humidity Resistance	5% ~ 95% RH, long-term stable operation under non-condensing high humidity
Anti-Corrosion Treatment	Full PCB conformal polyurethane coating, resist moisture, salt mist, weak acid/alkali vapor
Mechanical Hardening	5g anti-vibration (10–150Hz IEC 60068-2-6), shock resistant for damp workshop equipment rooms
Mounting	Standard 35mm DIN rail finned metal heat sink housing, IP20 cabinet internal protection
Redundancy Feature	Built-in decoupling diodes, microsecond seamless dual-input switchover
Protection Suite	OVP/OCP, hiccup short-circuit auto-recovery, over-temperature shutdown, multi-stage EMC surge filter
Status Indicator	Power OK LED + dual input fault alarm for remote cabinet monitoring
Dimension & Weight	194 × 113.6 × 138 mm, approx. 2.8kg
Certifications	CE, UL, IEC61010 industrial safety, damp & corrosion environmental test certified

3. Key Advantages for Humid & Harsh Industrial Environments

3.1 Full Conformal Coating PCB Core Anti-Humidity & Anti-Corrosion

The entire internal circuit board is coated with ABB certified acrylated polyurethane conformal coating, forming an airtight protective film on chips, traces and solder joints.

• Block damp steam, water splash, oil mist and weak corrosive gas (H₂S, SO₂, salt mist) in chemical, offshore, hydropower and coastal factories;
• Prevent circuit oxidation, pin corrosion and leakage current drift caused by long-term high humidity, avoid power output fluctuation and module failure;
• Pass IEC 60068 damp-heat cycle aging test, stable 24/7 continuous operation without regular maintenance in humid control rooms.

3.2 95% RH Wide Humidity Tolerance, Adapt to Damp Unventilated Cabinets

Supports continuous operation under 95% relative humidity without condensation, solving common pain points of ordinary power supplies: low-humidity startup failure, high-humidity output drift, internal component mildew. Perfect match for poorly ventilated underground pump rooms, coastal salt-fog workshops, water treatment plant control cabinets and hydropower station damp equipment rooms.

3.3 Metal Finned Heat Dissipation Prevents Humidity-Accelerated Overheating Failure

Integrated thick metal finned heat sink optimizes internal heat dissipation, reducing local temperature difference inside the module to avoid internal condensation caused by temperature fluctuation. Low heat generation from 93% high efficiency further lowers the risk of water vapor condensing on circuit boards, double guarantee against humid environment damage.

3.4 Dual Redundant Input Ensures Uninterrupted Control in Humid Power Disturbance Sites

Two isolated independent input terminals support dual mains + UPS redundant power access. Microsecond seamless switchover during mains fluctuation or transient power loss easily triggered by humid environment leakage and grid surge, zero downtime for SIS safety interlock, DCS controllers and industrial communication switches, avoiding production shutdown and safety accidents caused by single power source corrosion failure.

3.5 Multi-Layer Hardware Protection Against Humidity-Induced Electrical Faults

• Input undervoltage lockout: Prevent unstable leakage voltage from humid wiring damaging high-value AC800M CPU and communication modules;
• Hiccup short-circuit recovery: Auto reset after field wiring damp short-circuit, no permanent burnout;
• Multi-stage EMC surge filter: Suppress ground potential offset and harmonic interference easily generated in damp grounding environments, eliminate DCS signal drift and communication packet loss.

3.6 Industrial-Grade Long-Life Components Low Maintenance Cost in Humid Sites

All electrolytic capacitors, transformers and semiconductor chips adopt ABB high-humidity resistant industrial grade materials, resisting accelerated aging under damp atmosphere. Each unit passes factory continuous damp-heat, vibration and salt mist cycle testing before delivery, ultra-low long-term failure rate compared with ordinary non-coated imitation power modules, greatly reducing spare part replacement frequency in high-humidity factories.

4. Typical Humid Harsh Industry Application Scenarios

1. Hydropower Station DCS Cabinets: Underground turbine control rooms with long-term high humidity, UNITROL generator excitation system redundant power supply
2. Coastal Offshore & Chemical Plants: Salt mist, acid vapor damp workshops, System 800xA SIS safety interlock cabinet core power module
3. Water Treatment & Sewage Automation: Pump house damp enclosed control cabinets, S800 I/O and Ethernet communication switch dedicated power supply
4. Mining Underground Control Rooms: High humidity, dust and water splash underground medium voltage drive auxiliary cabinet power source
5. Marine & Coastal Manufacturing Workshops: Salt fog corrosion environment smart factory Industry 4.0 control rack stable power backbone

5. Original In-Stock & Global Shipping Service

All ABB LXN1604-6 / 3BHL000986P7000 high-stability anti-humidity power modules we supply are 100% genuine original factory products, complete with sealed original packaging, official damp environment performance test reports, covered by a formal 12-month warranty against manufacturing defects under rated operating conditions. Our warehouse maintains abundant permanent ready stock to rapidly process urgent humid-site automation cabinet maintenance orders and bulk procurement for global heavy industrial EPC 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/UPS for worldwide delivery covering Europe, Southeast Asia, Middle East coastal regions and all high-humidity industrial zones, with full customs clearance support. Our supporting services include pre-sales humid cabinet power load calculation, redundant power topology design, plus after-sales DIN rail installation, redundancy function debugging and full ABB 800xA DCS system commissioning.

Product Core Value Summary

Genuine ABB LXN1604-6 anti-humidity power module delivers corrosion-resistant, zero-interruption stable 24V high-power output for ABB full-process automation systems in damp, corrosive harsh industrial environments. Original conformal coating and wide humidity tolerance eliminate circuit corrosion, power drift and system trip risks from inferior power supplies, effectively cutting unplanned production downtime and long-term maintenance cost in high-humidity sites. Supported by ample spot stock, fast global logistics and complete 12-month warranty, it is the preferred high-stability redundant power spare component for coastal, hydropower, chemical and water treatment harsh industrial automation projects.