In the section below, you can find the most frequently asked questions (and answers) we received.

These are categorized in Operation, Reliability, Compliance, and Others.

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MEAN WELL offers a selection of Surge Protection Devices to protect the power supply against surges and voltage peaks. 

Go to www.meanwell.com

  1. Select products
  2. Type in “SPD” in the search field
  3. You will find several available SPD’s
Category: Reliability

A Surge Protection Device is optimized for a single voltage. Therefore, SPD should be chosen according to the actual operating voltage of the part that need to be protected.Secondly, the voltage protection level shows what is the maximum voltage appeared at output side when a specified surge is coming to the SPD. In general, the lower the voltage protection level, and the higher the discharge or surge current from SPD, means the better protection that the SPD provides.