ABB LXN1604-6 (Order Code: 3BHL000986P7000) is an original ABB high-precision DIN rail integrated power supply dedicated to ABB Ability™ System 800xA industrial automation and AC800M redundant controller platforms. It integrates a precision-regulated 500W 24V DC AC-DC power unit and hardware-accelerated 4-port galvanically isolated CEX-bus Gigabit switch in one compact housing. Its core advantage lies in ultra-stable precision voltage output, ultra-low ripple noise and high line/load regulation accuracy, which eliminates measurement drift of precision transmitters, analytical instruments and high-resolution analog I/O modules in process control. We maintain full spot stock of brand-new factory-original units, complete pre-shipment precision calibration & communication aging testing, global door-to-door shipping and a standard 12-month full quality warranty for pharmaceutical, petrochemical, power, metallurgy and water treatment precision DCS cabinet construction, precision measurement system retrofits and emergency spare replacement projects worldwide.

Full Technical Specifications Focused on High Precision Power Performance

1. Core High-Precision Electrical Parameters (Factory Calibrated 0.2 Accuracy Grade)

Adopts LLC resonant soft-switching closed-loop feedback circuit with high-precision sampling chips, delivering stable output critical for precision industrial measurement loops:

• Dual Universal Input: AC 85–264VAC (47–63Hz); backup DC input 90–350VDC, seamless UPS/generator switchover without voltage fluctuation
• Rated Stabilized Output: 24.7VDC, 20A continuous, total 500W full power capacity
• Precision Regulation Index (Core High-Precision Indicators):
  1. Line Regulation ≤0.5%: Output voltage deviation controlled within 0.5% under full global grid voltage fluctuation
  2. Load Regulation ≤1%: Voltage drift less than 1% from 20%–100% full load, no measurement shift during equipment startup surge
  3. Output Ripple & Noise ≤100mV peak-to-peak: Ultra-low high-frequency interference, avoids signal jumping of 4–20mA precision pressure/temperature transmitters
  4. Voltage Accuracy Class 0.2: Long-term output deviation ≤±0.2%FS under constant temperature, meets pharmaceutical GMP and chemical precision reactor measurement standards
• Conversion Efficiency ≥90% across all load segments, low heat generation prevents thermal drift of internal precision sampling circuits in sealed compact cabinets
• Reinforced Isolation: 3kV AC insulation barrier between power input and CEX-bus signal circuits, isolates inverter/motor harmonic interference from precision analog measurement signals
• Industrial MTBF: Over 50,000 hours under 24/7 full precision load unattended operation

2. Built-In 4-Port CEX-bus Deterministic Gigabit Switch for Precision Controller Synchronization

The proprietary CEX-bus switching chip is factory pre-calibrated for jitter-free AC800M master/backup CPU data mirroring, ensuring consistent timestamp precision for all process measurement data:

• Port Layout: 4×10/100/1000Mbps auto-sensing Gigabit RJ45 ports, each with independent 2.5kV galvanic isolation and EMC surge suppression
• Switch Fabric: Non-blocking 12Gbps total capacity, 8.9Mpps forwarding rate, supports 9.6KB jumbo frames for mass high-precision measurement curve storage
• Deterministic CEX-bus Scheduling: Hardware fixed-cycle forwarding achieves sub-millisecond ultra-low jitter cyclic data synchronization, zero timestamp offset for high-precision analog sampling values
• Redundancy Protocol: Native RSTP rapid spanning tree, network fault recovery within 20ms to avoid precision measurement blind zones caused by communication cable breakage
• Supported Protocols: Native CEX-bus, Modbus TCP, PROFINET RT, MMS DCS control protocol; embedded IEEE 1588 PTP transparent clock for unified high-precision data timestamps required by safety audit and precision batch production traceability
• Real-Time Precision Diagnostics: SNMP hardware monitoring uploads power output voltage deviation, port packet loss, CEX-bus cycle fluctuation and timestamped fault logs to central 800xA HMI for rapid troubleshooting of precision measurement abnormal data

Standard 4-port allocation for precision redundant AC800M cabinet layout: Port1 – Primary AC800M CPU high-precision measurement data synchronization link Port2 – Backup redundant AC800M mirror link for measurement value backup Port3 – S800 high-precision analog I/O rack communication expansion Port4 – Precision analytical instrument HMI & ACS drive convergence port

3. Multi-Layer Hardware Protection to Safeguard Precision Power Output

Complete microsecond-level hardware protection suite prevents voltage distortion and precision measurement failure triggered by on-site electrical faults, intact only on genuine original high-precision modules:

1. Over Voltage Protection (OVP): Instantly cuts 24V DC output to shield precision transmitter boards and AC800M CPU analog sampling circuits during grid surge voltage impact
2. Overload & Over Current Protection (OCP): Tolerates 120% long-term rated load to withstand instantaneous startup surge of precision control valves and analytical sensors; automatic current limiting without permanent precision circuit drift
3. Auto-Recovery Short Circuit Protection (SCP): Rapidly suppresses huge short-circuit current from field wiring misconnection; precision power and CEX-bus communication resume automatically after fault clearance, no full cabinet power cycle required
4. Over Temperature Thermal Lockout: Real-time internal temperature monitoring prevents PCB thermal expansion leading to precision sampling circuit parameter shift in densely arranged DIN rail compact cabinets
5. Multi-Stage EMC Surge Filter: Absorbs lightning pulse and grid interference for remote oilfield, mining and pumping station sites with unstable power infrastructure that easily distorts precision measurement signals

4. DIN Rail Mechanical & Environmental Adaptation Specs for Precision Automation Cabinets

• Mounting Standard: TS35 standard snap-on DIN rail installation, hot-swap compatible; single module replacement will not shut down the entire cabinet precision measurement system
• Dimensions: 194mm depth × 113.6mm height, slim narrow body saves over 40% DIN rail horizontal space compared with split separate power + independent switch schemes
• Net Weight: ~0.5kg, lightweight design avoids DIN rail deformation under dense module arrangement inside small precision control cabinets
• PCB Surface Treatment: Full industrial three-proof conformal coating, passes IEC 60068 anti-vibration & shock testing, resists dust, moisture, oil mist and weak corrosive gas in chemical, pharmaceutical and metallurgical precision workshops
• Continuous Operating Temperature: -25℃ ~ +70℃ stable precision voltage output & CEX-bus communication operation; storage temperature: -40℃ ~ +85℃ for cross-region spare part logistics storage
• Protection Grade: IP20 indoor cabinet deployment; Global Certifications: CE, UL 5085, RoHS, SIL2 functional safety qualification for safety-critical precision interlock control loops

Core Advantages of High-Precision ABB LXN1604-6 Power Supply for Industrial Automation

1. Ultra-high precision voltage regulation eliminates precision measurement error (core highlight) Ordinary industrial power supplies feature large ripple and poor load regulation, which cause drift of 4–20mA pressure, temperature and liquid level transmitters, leading to inaccurate batch production batching, reactor temperature/pressure out-of-tolerance and unqualified finished products. This high-precision ABB power supply adopts closed-loop high-precision sampling control circuit, with ultra-low ripple and ultra-narrow voltage fluctuation range, stably supplying power to high-resolution analog I/O, online analytical instruments and optical detection equipment, fundamentally reducing measurement deviation and improving production yield for precision process industries such as pharmaceutical fine chemical synthesis.
2. All-in-one integrated design reduces cabinet space and hidden precision failure risks Traditional precision DCS cabinet schemes require separate high-precision DIN rail power supply and independent managed CEX-bus switch, occupying double rail length and multiplying wiring terminals prone to loose contact voltage drop that distorts precision measurement signals. This original single DIN rail unit merges 500W precision stabilized 24V power conversion and 4-port dedicated CEX-bus redundant switching, simplifying cabinet wiring layout, cutting on-site assembly labor hours, and reducing spare part inventory categories for maintenance teams managing multiple System 800xA precision DCS sets. Parallel N+1 module cascading supports full redundant precision power backbone construction for large multi-cabinet safety control networks to remove single power module voltage fluctuation hidden danger.
3. Factory pre-calibrated zero-risk compatibility with full ABB 800xA / AC800M precision automation ecosystem This high-precision power unit is pre-tuned to perfectly match AC800M PM864/PM866 redundant controllers, high-precision S800 analog I/O racks and ABB ACS drive series. Engineers complete one-click precision power parameter and redundant CEX-bus ring topology configuration via Control Builder M engineering software without secondary program calibration, drastically shortening DCS project on-site precision measurement loop commissioning and fault replacement recovery time. Hardware-accelerated CEX-bus forwarding eliminates random jitter existing on commercial general switches, guaranteeing consistent real-time refresh of precision process control signals mandatory for pharmaceutical GMP, chemical reactor and power plant safety systems.
4. Original factory genuine spot stock with 12-month global precision warranty eliminates long-term measurement risk Refurbished or counterfeit combined power-switch modules adopt inferior low-precision sampling chips and simplified filtering circuits, prone to large voltage drift, measurement signal jump and over-temperature trips under long-term full precision load, directly leading to production batch scrap and safety monitoring failure. All LXN1604-6 units we supply are unmodified factory-original products with intact high-precision power conversion and CEX-bus communication circuits, covered by a 12-month global quality warranty. Our professional automation technical team provides free remote after-sales guidance covering DIN rail cabinet layout design, precision DCS load power calculation, 4-port CEX-bus wiring planning, power supply measurement deviation fault diagnosis throughout the full 12-month warranty cycle.

Typical Industrial Automation Application Scenarios for High-Precision Power Supply

As the standardized high-precision power and CEX-bus communication core of ABB Ability System 800xA DCS & AC800M controllers, the original high-precision ABB LXN1604-6 industrial power supply is widely deployed across all precision continuous process automation sectors requiring stable measurement power:

• Thermal power plant boiler drum pressure & steam temperature precision monitoring redundant compact DCS control cabinets
• Petrochemical refinery high-precision reactor temperature, pressure and differential pressure skid-mounted safety control racks
• Pharmaceutical bioreactor and sterile filling GMP-compliant mini precision DCS panels (strict measurement accuracy requirements for drug synthesis batching)
• Municipal large water treatment plant online water quality analytical instrument precision control boxes
• Metallurgical hot rolling mill thickness/flatness detection sensor precision power automation panels
• Offshore oil & gas wellhead high-precision pressure monitoring compact DCS frames

Whether for new precision measurement cabinet manufacturing, energy-saving renovation of old low-precision discrete power/switch layouts, or emergency replacement of faulty combined power modules causing full DCS precision measurement signal distortion, original in-stock ABB LXN1604-6 high-precision power supply delivers stable, low-drift 24V DC power and deterministic redundant CEX-bus real-time communication support for ABB System 800xA & AC800M precision industrial automation control networks.