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This FAQ has been written for NEAL (North East Africa and Levant) region. If you are looking for information for another region, please select the correct country from the top-left dropdown in the page and 'Navigate to Browse FAQs' in the Support menu.

What is the value of one minute power frequency withstand voltage for NSX Breaker?

Compact NSX range has Uimp of 8 kV. Following IEC-60947-1 / 60947-2 standard, 1,2/50 us impulse wave and power-frequency withstand voltage test are performed on the breaker.

For the power-frequency withstand voltage test at 50 Hz, the voltage depends on the rated insulation voltage Ui (as illustrated in attached document), which is 800V for Compact NSX:
Rated insulation voltage Ui : AC test voltage (R.M.S)
60 < Ui ≤ 300 : 1500
300 < Ui ≤ 690 : 1890
690 < Ui ≤ 800 : 2000
800 < Ui ≤ 1000 : 2200
So for Compact NSX the value of this voltage is 2000 V for 1 minute.

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