ZOTUP IN PILLS | ENERGY SPD: WHAT IS THE MINIMUM CROSS-SECTION OF PHASE / NEUTRAL CABLES?

In the latest episode of ZOTUP IN PILLS, we explained the minimum cross-section of earth connection cables. In this episode, we will clarify the minimum cross-section of phase/neutral connection cables.

When installing an energy surge protection device (also known as low-voltage SPD) inside an electrical panel, it is important to consider that, just like for earth cables, the minimum cross-section of phase/neutral cables is not fixed but varies according to the Test Class of the device.

According to the IEC 62305 STANDARD, the minimum cross-section of phase and neutral connection cables should be:

• 16 mm² for a Class I SPD;
• 6 mm² for a Class II SPD.

Did you miss the sixteenth episode? Read it here EPISODE. Energy SPD: what is the minimum cross-section of earth cables?

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