The S1400 Power Optimizer is here! Now, your customers can supercharge their solar installations with this compact powerhouse that allows them to connect up to 30.4kW of power per string for fewer and longer strings.

Site design with S1400 Power Optimizers.
Here’s what you need to know:

We understand that many of your customers may be in the early stages of designing solar sites in 2024 and are now making important decisions about their site design and product compatibility.

S1400 Power Optimizers are designed to be paired with inverters that do not have internal fuses on the DC input. If the inverter is fuseless, you can use S1400 Power Optimizers "as is" without any modifications.

S-Series Power Optimizer_S1200_EU and ROW bent bracket long input_Front

Pairing S1400 Power Optimizers with an Inverter equipped with internal DC fuses?
A fuse replacement is required.

Pairing S1400 Power Optimizers with an inverter that has internal DC fuses does not meet SolarEdge's compatibility requirements. But, there's no need to worry! It is possible to modify current SolarEdge inverters that have internal DC fuses and make them compatible by replacing the existing DC fuses with Neutral Link fuses. 

SolarEdge will ship Neutral Link Kits to Distributors. Installers have been notified to order Neutral Link Kits through distributors when placing orders for S1400 Power Optimizers (Part Number FLD-3PH-NEUTRAL-LINK). Each kit contains 36 neutral links. The Neutral Link Kits are provided by SolarEdge to installers and distributors, free of charge. For instructions on how to replace DC fuses with neutral links, refer to our Neutral Link Replacement Manual.

Non-Compatible Inverters with Integrated DC Fuses:

Below you can find a list of inverter part numbers with built-in fuses that are not compatible with S1400 Power Optimizers. To pair S1400 Power Optimizers with one of the inverters listed below, a fuse replacement is required to replace the DC fuses with SolarEdge Neutral Links (Part Number FLD-3PH-NEUTRAL-LINK):

  • SExxK-RWxxxxxxA4
  • SExxK-RWxxxxxxC4
  • SExxK-RWxxxxxxE4
  • SExxK-RWxxIxxxZ4

String Fusing Requirements in SolarEdge Systems

S1400 Power Optimizers provides the flexibility to connect PV Systems with three parallel strings or fewer to each inverter unit allowing designs that eliminate the necessity for DC Fuses. Click here to review the string fusing requirements in SolarEdge systems.

Installation Guides

Useful Resources

Be sure to share these useful S1400 Power Optimizer materials with product installers:

S1400 Datasheet  |  Neutral Link Fuse Replacement Manual 
S-Series Power Optimizer and Inverter Compatibility Technical Note

Project Execution

Support

We appreciate your continued trust in our products and services. Your commitment to sustainable energy is making a positive impact, and we are here to support you every step of the way. Contact your local SolarEdge representative for questions or support.

Thank you for choosing SolarEdge.