What industries use Sola power supplies?

Sola power supplies are widely used across industrial and commercial sectors where stable, low-noise DC power is required for control electronics, sensors, PLCs, HMIs, and I/O modules. Eaton’s Sola family includes compact general-purpose units and ruggedized variants designed for higher ambient temperatures, vibration, and harsher environments.

Below are the industries and real-world applications where Sola supplies are commonly specified because of their reliability, protection features, and predictable derating behavior.

• Manufacturing & Industrial Automation: PLCs, motion controllers, HMIs, and machine sensors rely on clean DC power for deterministic operation.
• Food & Beverage: Washdown-capable cabinets and hygienic lines use rugged supplies with corrosion resistance and higher ingress protection.
• Automotive & Assembly: High-cycle equipment and robotic cells use supplies rated for vibration and thermal cycling.
• Packaging & Material Handling: Conveyors, sorters, and scales need reliable power to avoid downtime and product loss.
• Water & Wastewater: Remote stations, PLC control, and telemetry require robust supplies with good surge immunity.
• Oil & Gas / Petrochemical: Instruments and control systems in harsh atmospheres benefit from ruggedized designs and strict transient handling.
• Renewables & Energy: Inverter controls and monitoring equipment need supplies tolerant of electrical noise and changing ambient conditions.
• Building Automation / HVAC: Control panels for chillers, boilers, and access systems rely on steady DC rails for sensors and controllers.

Different industries place different demands on power supplies. Consider these common factors when selecting a Sola unit:

• Ambient temperature & cooling: High-temperature environments (oven areas, engine rooms) need supplies with higher operating ranges or forced ventilation.
• Vibration & shock: Mobile equipment and heavy machinery require rugged mounting and vibration-tolerant components.
• Ingress & corrosion: Food processing, outdoor, and coastal sites often need conformal coating, potting, or IP-rated enclosures.
• Electrical noise & transients: Near VFDs, welders, or heavy motors choose supplies with better surge immunity and filtering.
• Redundancy & runtime: Critical systems may need redundant supplies or DC-sharing/OR-ing to avoid single points of failure.

• Sum steady-state currents for all DC loads and add 20–30% headroom for startup/inrush and future expansion.
• Check the ambient-temperature derating curve for the selected Sola model — derating can significantly reduce available output at high temperatures.
• Provide adequate ventilation and avoid mounting supplies directly above heat-generating components.
• Use proper AC input fusing and follow torque specs on terminals to avoid loose connections under vibration.
• For mission-critical installations, consider redundancy (dual supplies with OR-ing) or supervisory monitoring for early fault detection.

• Consistent voltage regulation: Clean DC rails reduce unexpected behavior in sensitive electronics.
• Built-in protections: Current limiting, short-circuit protection and thermal shutdown protect downstream devices.
• Rugged variants: Models exist for higher temperature, vibration, and transient immunity where standard units would fail.
• Predictable derating: Known derating curves simplify thermal planning and avoid surprise failures in hot installations.

• Mount units with proper clearance for convection or provide forced cooling for tight enclosures.
• Torque all terminal screws to manufacturer specifications and use locking washers where vibration is present.
• Verify output voltage and ripple under expected load during commissioning.
• Inspect for dust, corrosion, or discoloration during regular preventive maintenance intervals.
• Replace supplies that show excessive heat, increased ripple, or failing status LEDs rather than extending service life past recommended limits.

Q: Which industries most commonly specify Sola power supplies?
A: Manufacturing, food & beverage, packaging, automotive, water/wastewater, oil & gas, renewables, and building automation are typical users.

Q: Do I always need a ruggedized (HD) model?
A: Not always. For climate-controlled indoor panels a standard Sola is usually sufficient. Choose HD when temperature, vibration, ingress, or electrical transients exceed standard unit ratings.

Q: How do I decide between redundancy and a higher-capacity supply?
A: For mission-critical systems, redundancy (dual supplies with OR-ing) provides failover. For less critical systems, right-sizing and headroom may be enough—assess downtime cost vs component cost.