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Voltage Rating

All Test Voltage (Ue) ratings are taken directly from actual testing, conducted per international standard IEC 60512-2, Test 4a.

According to standard IEC 60130-1, para. 14.5, these Test Voltages can be used to derive corresponding Operating Voltage (Us) ratings by derating in the following manner:

Test (Ue) versus Operating (Us) Voltage
Condition Formulae
if Us ≤ 1,000 V Us = Ue¹ x 0.33
if Us ≥ 1,000 V Us = Ue² x 0.67

¹ Ue > 500V
² Ue > 3.000V

Warning:

Many applications have special voltage requirements and therefore may require that other methods be used to determine Test and Operating Voltage ratings.

Those methods supersede others given above.


Event: IBC Amsterdam 08


Technical information


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Last revised : 28.08.2008 / Webmaster