The invention relates to a circuit current-limiting alarm method and device, and belongs to the technical field of
circuit protection, and the circuit current-limiting
alarm device comprises a housing, a circuit board fixedly installed in the housing, and two interfaces arranged at one side of the housing and used for connecting positive and negative
electrode lines. The series-connected bulbs are used as current-limiting resistors, the electromagnets of the electric bells connected in parallel effectively reduce the resistance of the lamp filaments when the lamp filaments do not emit light, if external equipment is short-circuited, the bulbs are used as electric appliances to bear
voltage and give out light to give an alarm, and different brightness and colors can represent serious short-circuit conditions. The
electric bell can work under the
voltage to give a sound alarm and repeatedly
cut off the current at the same time, the
wireless transmitting module can also work by utilizing the
voltage to give a
wireless alarm to indicate a short-circuit line, the voltage of an electric device can be reduced after an alarm mechanism such as a
bulb runs, the electric device is subjected to
current limiting protection, and the service life of the electric device is prolonged. The
bulb and other alarm mechanisms do not need to be replaced after alarming, the
normal mode is automatically recovered after
short circuit is eliminated, and the later maintenance cost is reduced.