ZOTUP IN PILLS | THE NOMINAL DISCHARGE CURRENT (In) VS. THE MAXIMUM DISCHARGE CURRENT (Imax): WHICH DATA TO CONSIDER?

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When choosing a surge protector, it's crucial to understand the difference between the nominal discharge current (In) and the maximum discharge current (Imax) to ensure optimal protection for your system. Here's why you should consider the nominal discharge current (In) instead of the maximum current (Imax):

1. The Real Relevance of Nominal Discharge Current

The nominal discharge current (In) represents the peak value of the impulse current with an 8/20 microsecond waveform, used to classify the SPD in Test Class II. It's essential to note that the surge protector is designed to operate at this value throughout its life, ensuring the safety and integrity of the device.

2. Limitations of Maximum Discharge Current

The maximum discharge current (Imax), on the other hand, is the maximum current value that can flow through the SPD without damaging it. However, this value isn't necessarily indicative of the SPD's protective capability since the device is primarily designed to operate at the nominal discharge current (In).

3. Safe and Informed Choice

To ensure reliable and long-lasting protection, it's advisable to refer to the nominal discharge current (In) when selecting a surge protector. By choosing a value at which the surge protector can operate safely multiple times, you ensure optimal protection for your system.

Make the right choice for your industrial facility protection; carefully consider the nominal discharge current (In) when choosing a surge protector.

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