Systems and methods for a protective device for air conditioner units
A protective device that includes a thermal fuse and a metal oxide varistor (MOV) fuse positioned in series downstream of a main breaker, wherein a transformer's primary windings are positioned upstream from the MOV fuse and downstream of the thermal fuse.
1 . A protective device for an air conditioning unit, the protective device comprising:
a thermal fuse, positioned downstream from a main breaker;
a metal oxide varistor (MOV) fuse positioned downstream and in series with the thermal fuse;
primary windings of a transformer being electrically coupled to power downstream of the thermal fuse and upstream of the MOV fuse within the protective device.
2 . The protective device of claim 1 , wherein the thermal fuse is configured to be activated based on a temperature across poles of the thermal fuse being greater than a predetermined temperature threshold.
3 . The protective device of claim 2 , wherein the MOV fuse is configured to control surges to voltages.
4 . The protective device of claim 3 , wherein the thermal fuse is configured to be activated before the main breaker is activated.
5 . The protective device of claim 3 , wherein the thermal fuse is configured to be activated before poles of the MOV fuse are bonded together.
6 . The protective device of claim 2 , wherein a motor is positioned electrically upstream of the thermal fuse, and is electrically coupled to the protective device.
7 . The protective device of claim 6 , wherein the motor is configured to receive power after the thermal fuse is activated.
8 . The protective device of claim 2 , further comprising:
a light-emitting diode that is configured to emit light before the thermal fuse is activated, and does not emit light after the thermal fuse is activated.
9 . The protective device of claim 8 , wherein the light-emitting diode is electrically positioned between the thermal fuse and the MOV fuse.
10 . The protective device of claim 1 , wherein the thermal fuse interrupts power transmitted to the primary windings of the transformer and a control circuitry for the air conditioning unit without flipping the main breaker.