Why is it needed To limit Ac Current ??


Joined Feb 24, 2006
It is not; a device takes the current it requires. A fuse or circuit breaker is used to break the circuit in case of a short to ground fault.


Joined Aug 21, 2008
Some devices that operate from AC such as light emitting diodes need to have the current limited. The most common reason for current limiting is to protect against damage from excess current in the case of a fault.


Joined Jan 23, 2018
please tell me about this question
The question contains none of the information needed to allow those who understand to provide a worthwhile answer. So the TS needs to explain what AC current, to what device, and the circumstances of the current flow.
Without more information there is no reason to provide an explanation.