ABB LXN1604-6, part number 3BHL000986P7000, is a compact DIN rail mount all-in-one industrial power module exclusively designed for ABB Ability™ System 800xA and AC800M redundant controller DCS systems. It fuses a high-density 500W 24V DC power supply and dedicated 4-port galvanically isolated CEX-bus Gigabit switch into one slim, condensed single housing, solving the pain point of bulky discrete power + separate industrial switches that occupy massive TS35 DIN rail space inside compact cabinets, skid-mounted process panels and mini on-site control boxes. The built-in red snap-on DIN rail buckle enables rapid installation and hot-swap maintenance without cabinet power shutdown. We maintain full spot stock of brand-new factory-original units, complete pre-shipment aging testing, worldwide door-to-door freight and standard 12-month full warranty for power, petrochemical, pharmaceutical, metallurgy and water treatment compact control cabinet assembly, automation system space-saving retrofits and emergency spare replacement projects.

Key Compact DIN Rail Mechanical & Dimension Specifications

The core competitive strength of this module lies in its highly integrated miniaturized compact layout optimized for standard TS35 DIN rail installation:

1. Exact Overall Dimensions: 194mm Depth × 113.6mm Height × 138mm Width, slim vertical narrow-body design, horizontal rail occupation reduced by over 40% compared to split power + independent switch combinations
2. DIN Rail Mount Structure: Built-in red plastic snap-lock buckle on the rear shell, one-handed snap-on fixed installation, no extra screws or mounting brackets required; supports direct disassembly for maintenance without removing adjacent modules on the rail
3. Net Weight: Approx. 2.8kg, lightweight casting shell structure, avoids DIN rail deformation under dense multi-module arrangement inside small sealed cabinets
4. Terminal Layout Optimization: Front-side separated input/output terminal blocks and 4 RJ45 Ethernet ports with reasonable spacing, sufficient wiring clearance in narrow cabinet interiors, convenient cable routing and inspection without squeezing surrounding I/O modules
5. Heat Dissipation Compact Design: Multi-row horizontal heat sink ribs integrated on the housing surface, high-efficiency passive heat dissipation, no external cooling fans needed to save extra installation space inside compact cabinets
6. Cabinet Adaptation: IP20 indoor cabinet protection grade, compact shape perfectly matches standard small stainless steel skid control boxes, laboratory pilot equipment mini enclosures and remote pumping station compact monitoring cabinets

PCB adopts full three-proof conformal coating, passes IEC 60068 anti-vibration and shock testing, stable operation in vibration-intensive rolling mill and compressor cabinet environments; continuous working temperature range -25℃ ~ +70℃, storage temperature -40℃ ~ +85℃ for cross-region spare part storage and transportation.

Full Electrical & CEX-bus Communication Technical Parameters

1. Compact High-Density 500W Power Unit

• Dual universal wide input: AC 85–264VAC (47–63Hz) + DC backup 90–350VDC, seamless UPS/generator power switchover without voltage fluctuation
• Stabilized DC output: 24.7VDC, 20A continuous full load, total 500W power capacity, single module fully powers dual AC800M redundant controllers, S800 I/O racks, safety relays and built-in CEX-bus switching circuit
• LLC resonant soft-switch efficiency ≥90%, low heat loss matching compact closed cabinet heat dissipation limits
• Output ripple ≤100mV peak-to-peak, avoids measurement drift of precision pressure/temperature transmitters in compact precision measurement cabinets
• 3kV AC reinforced isolation between power loop and Ethernet signal circuits, suppresses inverter/motor high-frequency interference
• Multi-layer hardware protection: OVP overvoltage cut-off, 120% long-term overload resistance, auto-recovery short-circuit protection, over-temperature thermal lockout, per-port EMC surge filter
• MTBF over 50,000 hours under 24/7 continuous full-load compact cabinet operation

2. Integrated 4-Port Compact CEX-bus Gigabit Switch for AC800M

• 4×10/100/1000Mbps auto-sensing isolated Gigabit RJ45 ports, each with independent 2.5kV galvanic isolation, no redundant idle ports to waste compact cabinet resources
• Non-blocking 12Gbps switching capacity, 8.9Mpps forwarding rate, supports 9.6KB jumbo frames for process curve and safety log storage
• Hardware fixed-cycle CEX-bus scheduling, sub-millisecond low-jitter master/backup AC800M controller data mirror synchronization
• Native RSTP rapid ring redundancy, network fault recovery within 20ms to prevent safety interlock trips
• Supported protocols: Native CEX-bus, Modbus TCP, PROFINET RT, MMS, embedded IEEE 1588 PTP unified timestamp clock for GMP safety audit traceability
• Real-time SNMP diagnosis uploads power load, port packet loss and CEX-bus cycle deviation to System 800xA HMI for quick troubleshooting

Standard 4-port compact cabinet allocation: Port1 – Primary AC800M CPU synchronization link Port2 – Backup redundant AC800M mirror link Port3 – S800 compact I/O rack communication Port4 – HMI & local drive convergence port

Core Advantages of Compact DIN Rail Mount Power Module

1. Ultra-compact integrated design drastically cuts cabinet volume and rail occupation space Traditional DCS cabinet layout requires separate DIN rail power supply and standalone managed CEX-bus switch, occupying double TS35 rail length and increasing wiring terminals prone to loose contact faults. LXN1604-6 merges power conversion and dedicated CEX-bus switch into one single DIN rail module, enabling customers to select smaller-size compact control cabinets, reduce cabinet manufacturing and transportation costs for skid-mounted equipment, shorten on-site wiring length and cut assembly labor hours. For enterprises with numerous scattered small on-site control boxes, only one spare part model needs stocking instead of two separate units, lowering spare part warehouse space and capital occupation. Parallel N+1 module cascading supports redundant power deployment within limited rail space to eliminate single-point power failure risks for safety-critical loops.
2. Optimized DIN rail snap-fit structure simplifies installation & hot-swap maintenance The rear integrated red DIN rail buckle realizes one-click locking and disassembly; during equipment overhaul, single module replacement does not require cutting off the whole cabinet main power supply, all AC800M redundant CEX-bus communication links remain active, avoiding full production line halt for continuous hazardous process industries. The front separated terminal and Ethernet port layout reserves sufficient operation space in narrow compact cabinets, convenient for wiring modification and fault inspection.
3. Factory pre-calibrated full compatibility with ABB 800xA / AC800M compact control ecosystem This compact power module is pre-tuned to perfectly match slim AC800M PM864/PM866 redundant controllers, narrow S800 compact I/O racks and ABB ACS drive series. Engineers complete one-click power parameter and CEX-bus ring topology configuration via Control Builder M software without secondary program debugging, drastically shortening compact DCS cabinet on-site commissioning and fault replacement recovery time. Hardware-accelerated CEX-bus forwarding eliminates random jitter of commercial general switches, guaranteeing stable real-time refresh of safety interlock and precision measurement signals mandatory for pharmaceutical GMP, chemical reactor and power plant safety systems.
4. Original genuine spot stock with global shipping & 12-month warranty eliminates long-term operation risks Refurbished or counterfeit combined power-switch modules adopt simplified internal circuits and inferior heat dissipation structures, prone to overheating, CEX-bus synchronization failure and frequent protection trips under long-term full load in poorly ventilated compact cabinets. All LXN1604-6 units we supply are unmodified factory-original complete modules with intact power conversion, communication and protection circuits, covered by a 12-month global quality warranty. We maintain year-round sufficient spot inventory, arrange shipment same-day after order confirmation, cooperate with mature international industrial freight channels to deliver worldwide, and provide free remote technical guidance covering compact cabinet DIN rail layout design, DCS load calculation, 4-port CEX-bus wiring planning and power supply fault diagnosis throughout the warranty cycle.

Typical Compact DIN Rail Cabinet Application Scenarios

As the standardized compact DIN rail power and CEX-bus communication core of ABB System 800xA DCS & AC800M controllers, ABB LXN1604-6 3BHL000986P7000 is widely deployed in all space-limited industrial automation scenarios requiring condensed control cabinets:

• Thermal power plant auxiliary boiler compact redundant DCS cabinets
• Petrochemical small reactor skid-mounted mini safety control racks
• Pharmaceutical bioreactor & sterile filling GMP-compliant compact DCS panels
• Municipal water treatment single pump/fan mini automation control boxes
• Mining portable local drive compact monitoring cabinets
• Offshore oil & gas wellhead skid small-size DCS frames

Whether for new compact DIN rail cabinet manufacturing, space-saving renovation of old split power/switch layouts, or emergency replacement of faulty combined modules causing full CEX-bus communication interruption, original DIN rail compact ABB LXN1604-6 power module delivers space-efficient, stable 24V DC power and deterministic redundant CEX-bus real-time communication support for ABB System 800xA industrial control systems.