ABB LXN1604‑6, full order code 3BHL000986P7000, is a heavy-duty industrial AC/DC switching power supply under ABB Convert Select series, with built-in dual redundant input circuit design. Rated 500W / 27VDC output, it serves as the core power source for ABB medium voltage drives, UNITROL generator excitation systems, System 800xA DCS and heavy industrial control cabinets. Dual redundant input supports dual independent AC/DC power sources seamless switching; once one input power fails, the other takes over instantly without system blackout, critical for uninterrupted power supply of power plant, metallurgy and petrochemical key control equipment. We supply 100% brand new sealed genuine ABB power supplies with abundant spot inventory, fast worldwide logistics delivery and standard 12-month manufacturer warranty, widely used for new cabinet configuration, power system renovation and emergency spare replacement.

Core Technical Specifications

表格

Parameter Item	Standard Specification
Full Part Number	LXN1604‑6 / 3BHL000986P7000
Rated Output	27VDC, 20A, Total Output Power 500W
Redundant Input Range	Dual-channel universal input: AC 85–264V; DC 90–350VDC, dual-source parallel redundant input support
Redundancy Function	Built-in internal decoupling diode, seamless automatic switchover between two input circuits, no extra redundancy module required
Parallel Capacity	Multiple units parallelable for capacity expansion and N+1 redundant power system construction
Conversion Efficiency	Up to 93% high efficiency, low heat generation for long full-load operation
Installation Method	Standard 35mm DIN rail snap mounting
Enclosure Protection	IP20 metal casing, dustproof cabinet internal use
Operating Temperature	-20℃ ~ +70℃, derating above 55℃
Storage Temperature	-40℃ ~ +85℃
Complete Protection Suite	Overvoltage, overcurrent, short-circuit, over-temperature, input undervoltage lockout protection
Status Indication	Power OK LED, input channel fault alarm indicator
Weight	Approx. 2.8kg
Certifications	CE, UL, IEC61010 industrial EMC & safety standard

Core Advantages with Redundant Input Design

1. Native Dual Redundant Input Eliminates Single Point Power Failure

Integrated dual independent input terminals with built-in isolation decoupling circuit, directly connect two separate UPS/grid power sources. If one input loses power, voltage drops or surges, the module switches to the backup input within microseconds, zero interruption for DCS, gate drive boards and safety interlock circuits, avoiding costly production shutdown and unit tripping. No external redundancy diodes or modules needed, simplifying cabinet wiring layout.

2. Wide Universal Dual Input Adapt Global Industrial Power Grids

Supports both wide-range AC and DC dual redundant input, compatible with industrial 110V/220V single-phase mains and DC backup battery systems, flexible deployment for power plants, offshore platforms and overseas production lines with unstable grid voltage.

3. High Power Density & Stable 27V Heavy Load Output

27V high-current 20A output specially optimized for ABB medium voltage drive power boards, excitation system signal acquisition units and IGCT gate drive modules. Low ripple output voltage, strong anti-load shock capacity, stable power supply under motor startup, short-circuit transient impact conditions.

4. Full Multi-Layer Hardware Protection Safeguards Backend Expensive Equipment

• Input undervoltage lockout: avoid unstable low voltage damaging control boards
• Overvoltage/overcurrent auto-limit: suppress abnormal output surge
• Short-circuit hiccup protection: auto-recover after fault removal without permanent burnout
• Over-temperature thermal shutdown: prevent power supply damage under poor cabinet heat dissipation Multi-stage EMC surge filter suppresses drive harmonic interference, no power output flicker or reset under high-noise workshop environments.

5. Modular DIN Rail Structure Easy Maintenance & System Expansion

Compact metal housing DIN rail installation, quick plug-in wiring terminals for fast replacement without full cabinet power cut. Multiple LXN1604‑6 units can be paralleled to build N+1 redundant power architecture for large control racks, flexible to match power demand expansion of new production lines.

6. Industrial-Grade Robust Hardware Long Service Life

All power transformers, switching tubes and electrolytic capacitors adopt ABB industrial long-life grade components, conformal coated internal circuit boards resist moisture, dust and corrosive gas. Each unit passes factory continuous full-load aging, vibration and damp-heat cycle testing, ultra-low long-term failure rate compared with generic imitation power supplies.

Main Industrial Application Scenarios

1. Thermal & Hydropower Plant Excitation Systems: UNITROL generator excitation cabinet redundant power supply, avoid generator voltage regulation failure caused by single power source loss
2. Metallurgy Medium Voltage Drive Cabinets: Rolling mill, continuous casting machine PCS6000 drive control board uninterrupted power source
3. Chemical & Petrochemical DCS Safety Systems: Reactor SIS safety interlock, distillation tower monitoring system dual redundant power guarantee
4. Mining Heavy Equipment Converters: Mine hoist, long-distance heavy conveyor medium voltage drive core power supply
5. Cement New Energy Automation: Rotary kiln main drive, wind power full-power converter internal control power module

Original In-Stock & Global Fast Shipping Service

All ABB LXN1604‑6 redundant input industrial power supplies we provide are 100% genuine original factory products, complete with sealed original packaging and official factory full-performance test reports, covered by a formal 12-month warranty against manufacturing defects under rated standard operating conditions. Our warehouse maintains abundant permanent ready stock to rapidly fulfill urgent power cabinet maintenance orders and bulk procurement for global heavy industrial EPC projects. We adopt professional anti-static, shockproof and moisture-proof dedicated export packaging to protect power circuit components during long-distance sea and air international transportation. We cooperate with mainstream global logistics carriers to deliver fast worldwide shipment covering Europe, North America, Southeast Asia, the Middle East and all major power & process industrial regions, with one-stop professional customs clearance coordination support. Our full supporting service includes pre-sales redundant power system topology design, dual input wiring scheme consultation, plus after-sales DIN rail installation, redundancy function debugging and complete control cabinet power system overall commissioning.
Selecting genuine original ABB LXN1604‑6 redundant input power supply delivers zero-interruption stable 27V high-power output and complete multi-layer protection guarantee for your medium voltage drive, generator excitation and DCS safety control systems. Consistent original ABB power electronic quality eliminates single-point power outage, output surge and equipment burnout risks brought by counterfeit power modules, effectively reducing unplanned heavy industrial equipment shutdown frequency and long-term operation maintenance costs. Supported by our ample in-stock inventory, efficient fast worldwide shipping and complete 12-month warranty protection, it is the trusted original redundant power spare component choice for global uninterrupted industrial automation projects