In modern industrial automation, reliable power conversion modules are the silent backbone of control systems. The ABB LXN1604-6 (3BHL000986P7000) is a high-quality power supply / converter module designed to meet rigorous demands in control cabinets, distributed control systems (DCS), PLC installations and other industrial processes. In this blog post we’ll delve into its technical specifications, key features, applications, installation considerations and why it’s an excellent choice for engineers designing or upgrading industrial systems.
The ABB LXN1604-6 is identified by the part number 3BHL000986P7000, and is described as a “Power Supply / Convert Module”.According to several sources:
It is designated for 27 V output at 500 W.
It can function as an AC–DC or DC–DC converter.
Designed for industrial automation use, with rugged features (DIN-rail mounting, rugged enclosure, high immunity).
Thus, the LXN1604-6 is essentially a robust, industrial-grade power converter / supply module suited to demanding environments.
Here is a detailed set of the known technical parameters of the LXN1604-6 (3BHL000986P7000):
| Parameter | Specification |
|---|---|
| Output Voltage | 27 V DC (nominal) |
| Output Power | ~500 W |
| Input Voltage | Universal AC input (approx. 90-350 V AC) or DC input in some configurations. |
| Efficiency | Up to around 89% in some listings. |
| Protections | No-load, overload, short-circuit proof; rectangular current limiting; high immunity to electrical disturbances (conformal coated PCB) |
| Mounting / Form Factor | Rugged DIN-rail snap-fit design in some listings; built for Class I equipment. |
| Operating Environment | Designed for harsh industrial conditions; wide input range, high immunity to surge, ESD, etc. |
| Country of Origin | Switzerland (CH) / Finland (FI) noted in some listings. |
With efficiency up to ~89%, the LXN1604-6 reduces waste heat, improves system reliability and helps lower cooling requirements. The ability to convert a wide AC input (or DC) to a stable 27 V DC output ensures compatibility with many industrial components.
The module is built to handle industrial-grade stresses: low inrush current, high immunity to electromagnetic disturbances (IEC/EN 61000-4-2/3/4/5/6/11) and conformal-coated PCBs for protection in adverse environments. The rugged form factor helps ensure longevity in control cabinets, process plants, power utilities, etc.
Its universal input range (~90-350 V AC/DC) means fewer SKUs to stock and easier global deployment across regions. The fixed 27 V output is compatible with many control, automation and instrumentation loads. Some modules may offer single or dual outputs depending on variant.
Designed for DIN-rail mounting (in some versions) and with industrial standard features makes the module easier to integrate into panels, retrofit systems or new builds. The compact size allows better space utilisation in panels.
Overload, short-circuit proof, no-load handling and rectangular current-limiting bolster operational reliability. These features are critical in industrial control contexts where unexpected loads or faults can occur.
Here are some key application domains where the LXN1604-6 shines:
Distributed Control Systems (DCS) / PLC Cabinets
Many automation systems require a stable 24–28 V DC bus for control logic, sensors, relays, actuators. The LXN1604-6 is well-suited as a dedicated power module in such cabinets.
Process Automation & Petrochemical Plants
In harsh environments with temperature variations, dust, EMI and other disturbances, the module’s robustness makes it a strong candidate.
Power Utility / Substation Automation
Power conversion modules for relay logic, control rooms and substation automation can benefit from this converter’s wide input and industrial resilience.
Retrofit of Legacy Systems
Many plants have legacy equipment that needs stable DC power; using modern modules like LXN1604-6 helps standardize power supplies, reduce footprint, and improve reliability.
Distributed I/O & Remote Panels
Remote skids or distributed panels often face less controlled power environments; a wide input module with strong protections fits well.
Engineers should size the module based on the connected load plus margin: e.g., if the load is 300 W at 27 V then a 500 W module like LXN1604-6 offers good headroom. Also ensure adequate ventilation and ambient temperature rating.
Mount according to ABB’s instructions: ensure correct orientation, solid DIN-rail or panel mounting, proper creepage/clearance, and correct input wiring (AC or DC as appropriate). Proper separation from high-power AC/transformers helps reduce interference.
After wiring, verify input voltage range, output voltage (should be ~27 V DC under nominal load), check for absence of undue noise, heating, or fault indicators. Many modules include diagnostics—monitor during initial run.
Periodically inspect module for dust, ventilation blockage or signs of overheating.
Measure output: ensure 27 V remains stable under load.
Check ambient temperature: high heat reduces lifespan.
If module is in a critical application, consider redundancy or spare module on-site.
Proven Brand & Support: ABB is a recognized leader in industrial automation and power conversion modules, offering support and spares globally.
Wide Input Flexibility: Helps deployment in varied global locations with different mains voltages.
Industrial-Grade Robustness: Features such as DIN-rail form factor, high immunity to disturbances, and protective features reduce operational risk.
Simplification of Inventory: One module type (27 V output, 500 W) fits many control-panel applications, reducing the need for multiple specialised power supplies.
Longevity & Reliability: High efficiency, low stress operation and good protections contribute to longer service life and less maintenance downtime.
While there are many power modules in the market, the LXN1604-6 offers a strong feature set for industrial automation. However, engineers should evaluate:
Does the output meet the exact voltage required by downstream loads? Some loads require 24 V instead of 27 V — verify compatibility.
Confirm ambient temperature and mechanical mounting conditions — if too harsh, ensure module is derated or has proper enclosure.
For ultra-critical systems, consider redundancy (dual modules) or parallel setup.
Check that input disturbances (voltage dips, surges) in your plant are within module’s rated immunity figures.
Verify official ABB datasheet for full spec sheet: some supplier listings may have estimated or rounded specs.
The ABB LXN1604-6 (3BHL000986P7000) is a robust, efficient, industrial-grade power conversion module that fits a wide range of applications in automation, control systems, utility panels and remote panels. Its stable 27 V output, wide input range, high efficiency, strong protection features and proven brand pedigree make it a strong candidate when specifying power modules for control systems.
For engineers tasked with panel design, retrofit or new installation in demanding industrial environments, this module offers a balance of performance, reliability and ease of integration. When considering system architecture, power budget, thermal design, wiring and redundancy, the LXN1604-6 stands out as a reliable choice.
