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SolarEdge S440 Optimizer | 440W Panel Support
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SolarEdge S440: Reliable Optimisation for Residential and Commercial PV

The SolarEdge S440 Power Optimizer enables enhanced panel output by providing module-level MPPT and performance tracking. It ensures each panel operates at its maximum capacity regardless of shading or mismatch—delivering a smarter, safer solar system.

Maximise Output Across Every Panel

The S440 allows solar arrays to perform better in partial shading or challenging layouts. Each unit connects directly to a single panel, ensuring maximum power harvesting at the module level. It's especially useful for rooftops with different orientations or when using high-output PV modules.

  • Rated for up to 440W STC PV modules
  • Module-level MPPT for optimal yield
  • Reduces impact of panel mismatch or shading

Improved Monitoring and Safety

By connecting the S440 with a SolarEdge energy meter, installers and users gain precise, real-time insight into system performance. In addition, automatic panel shutdown features increase onsite safety.

Why Evergy Recommend This Product

  • Improves output from shaded or split-panel systems
  • Works with all SolarEdge inverters
  • Helps meet G98/G99 compliance standards

Ideal For

Residential rooftops with varied panel layouts, or commercial sites where energy efficiency and data visibility matter.

Key Specifications

  • Rated Power: 440W
  • Max Input Voltage: 60V
  • Compatible with: SolarEdge inverters and S500 optimisers

Full technical data is available under the 'Specification' tab.

Delivery

This item qualifies for free UK delivery. Bulk or installer orders may be shipped via pallet. View our delivery page for more.

Pair With Other SolarEdge Products

Looking for a flexible optimiser for shaded or retrofit installations? Explore the Tigo Add-On Solar Panel Optimiser for enhanced panel-level control.

Need help specifying your system? Speak to Evergy or call 01844 393939.

Products specifications

Attribute name Attribute value
Features Solar integration, timers, dynamic load balancing, event logging, RCD, IP65, OCPP 1.6J, wall/pedestal mounting, LCD screen, tamper-proof pin-lock, 3-year warranty
Max Input Voltage 600 V
Efficiency 97.5%
Power rating 8kW
Max Output Current 14.5A

No data sheets or downloads available for this product.

Delivery options

  • Standard parcel delivery — tracked courier, typically 1–2 working days to UK mainland. Ideal for chargers, accessories and smaller solar components.
  • Pallet delivery — for bulkier items such as multi‑panel solar kits or commercial chargers. Typically 2–3 working days, kerbside as standard; 24/48‑hour services on request.
  • Collection — collect from our Oxfordshire distribution hub by appointment. Please contact us before travelling so we can confirm stock is ready.

Lead times

We dispatch Monday to Friday (excluding bank holidays). Stocked items ordered before our warehouse cut‑off are dispatched same day where services allow. Back‑order items are clearly flagged with estimated lead times. Exact services and pricing are confirmed at checkout.

Delivery area

UK mainland addresses only. We are unable to ship to Northern Ireland, Republic of Ireland, Isle of Wight, Isle of Man or the Channel Islands. Please report any damages or shortages within 48 hours of delivery.

Read full delivery & returns details

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Open online pricing is available, but if you need account support, branch collection, project quantities or renewables supply help, start a trade conversation with LAMPS.

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