The power supply has a spec of the input voltage range. If it is operated outside the spec of the input voltage range, the problem as the following may be caused. Therefore, it is not allowed to be operated outside the spec of the input voltage range.

1. The case that is operated at lower than the spec of the input voltage range

Basically, the power supply can not be operated at lower than the spec of the input voltage range. Even if the power supply work, the power supply may get broken because the input current that is increased may exceed the rated current of internal components.

2. The case that is operated at higher than the spec of the input voltage range

If the power supply is operated at higher than the spec of the input voltage range, it may get broken because the voltage that is applied to some internal components may exceed the rated voltage of them.

3. AC132V - AC170V input with input voltage selector type

(1) Auto-selectable

The internal circuit detects the input voltage, and changes the input voltage selector. The input voltage selector is changed to the voltage double rectifier when the input voltage is AC85V - AC132V, and it is changed to full wave rectifier when the input voltage is AC170V - AC264V. If the input voltage is AC132V to AC170V, the operation of this selector gets unstable. Therefore, the power supply may not be operated regularly if it is operated at AC132V - AC170V of the input voltage.

(2) User-selectable

If the input voltage selector is AC100V type, it means that it is same condition as item 2. And, if the selector is AC200V type, it means that it is same condition as item 1. Therefore, please avoid operating it at AC132V - AC170V of the input voltage.