SolarEdge POWER OPTIMIZER S440 (2,3/0,1/0,1m)

SolarEdge POWER OPTIMIZER S440 (2,3/0,1/0,1m)

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PV power optimisation at the module-level

  • Module Add-On to maximise the output of PV systems
  • MPPT and monitoring on the module level
  • Increase in efficiency of up to 25%


The SolarEdge optimisers are the DC/DC converters that are connected by installers to each PV module or embedded by module manufacturers, replacing the traditional solar junction box. The SolarEdge power optimisers increase energy output from PV systems by constantly tracking the maximum power point (MPPT) of each module individually. Furthermore, the power optimisers monitor the performance of each module and communicate performance data to the SolarEdge monitoring portal for enhanced, cost-effective module-level maintenance. Each power optimiser is equipped with the unique SafeDC™ feature which automatically shuts down modules’ DC voltage whenever the inverter or grid power is shut down.

The MPPT per module allows for flexible installation design with multiple orientations, tilts and module types in the same string.  When working with SolarEdge Inverters, SolarEdge power optimisers automatically maintain a fixed string voltage, allowing installers even greater flexibility with longer strings and strings of different lengths in order to design optimal PV systems.

The SolarEdge power optimiser is compatible with c-Si and thin-film modules and have a 25 year warranty.

 Feature highlights of SolarEdge optimiser

  • Specifically designed to work with SolarEdge inverters
  • Detects abnormal PV connector behaviour, preventing potential safety issues*
  • Module-level voltage shutdown for installer and firefighter safety
  • Superior efficiency (99.5%)
  • Mitigates all types of modules mismatch- loss, from manufacturing tolerance to partial shading
  • Flexible system design and compatible with bifacial PV modules for maximum space utilization
  • Faster installations with simplified cable management and easy assembly using a single bolt
  • Next generation maintenance with module safety

Covers a wider array of newer modules in the RESI market

  • S440: supporting PV modules up to 440Wp, Isc 14.5A, 60V
  • S500: supporting PV modules up to 500Wp, Isc 15A, 60V


Safe: More Protection with SolarEdge Sense Connect

We’ve extended PV system safety to the connector level by preventing electric arcs, rather than just detecting them at the string level.

  • Sense Connect continuously monitors S-Series Power Optimiser connectors for overheating due to installation issues or wear and tear
  • If abnormal temperature is detected, an event is triggered and the inverter is shut down, if needed
  • An alert is automatically sent to the installer, including the issue location enabling fast identification of the faulty connector (location is visible in the Monitoring Platform’s Physical Layout)


Smart: Real-Time Alerts for Easier O&M

The S-Series Power Optimiser offers module-level visibility of site performance and production, helping maximise system uptime and your O&M savings. This also extends to the new SolarEdge Sense Connect feature:

  • Installers are automatically alerted if connector overheating is detected and if inverter shutdown was initiated
  • Module-level alerts pinpoint the location of the thermal event, so you can immediately identify the faulty connector

And of course, SolarEdge SafeDC, which automatically shuts down high DC voltage during inverter or grid shutdown, is still built-in to the S-Series models as before.


Improved Cable Layout for Faster Installations

With three short cables and one long one, connecters now “float” close to the S-Series unit itself. This helps reduce exposure to potential isolation faults, further reducing time onsite and increasing system safety.



About Solar Edge

Founded in 2006, SolarEdge established the DC power optimiser segment and is leading it with over 70% market share. By Q2 2012, SolarEdge has shipped over 1,000,000 power optimisers to more than 30 countries worldwide. With strategic partnerships across the PV value-chain from module manufacturers to integrators, SolarEdge installations can be found in five continents.

Please note that all prices are exclusive of GST


Additional information



Product Category

Power Optimiser

SolarEdge POWER OPTIMIZER S440 Datasheet


Delivery and Returns Content description.

Melbourne Office

122 Castro Way
Factory 2 (Rear Warehouse)
Derrimut VIC 3026
ABN: 20 154 785 207

Brisbane Office

Unit 2B,
18 Cutler Court,
Brendale QLD 4500
ABN: 59 640 873 294


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