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Protect Your Photovoltaic Systems with Littelfuse's Surge Protection Devices

Updated: Mar 17, 2021

Photovoltaic systems are usually located in large open spaces, in fields, or on the tops of buildings which make them vulnerable to weather systems as well as hard to access. Lightning, an electrical discharge in the atmosphere, indirect lightning, and fires caused by the release of energy can all create voltage surges.

These surges can cause equipment damage or failure, downtime, and/or data loss, let alone jeopardize the safety of personnel. In addition, when these PV systems fail, their remoteness can lead to an extended downtime of business operations.

To avoid this, the SPD2 surge protection devices (SPDs) are installed to prevent these unpredictable hazards. Littelfuse has developed a guide to help you determine the right specifications and setup to offer the best protection for your PV installation.

Download the Application Guide to learn about:

  • How to select the right SPD for the dc side and ac side

  • Installation

  • Cables

  • How to combine SPDs with inverters

To learn more, contact your Electra Sales representative or visit Littelfuse online at


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