Air Compressor Motor Thermal Overload Switch

When the motor starter senses an electrical problem the overloads which are coils located within the motor starter heat up and break the electrical connection to the motor thereby protecting the air compressor from the type of damage shown in the picture below.

Air compressor motor thermal overload switch.

It continuously senses the current that the electric motor draws. Thermal switches can be retrofitted on the coil end but the result is an increased reaction time. In that way all three phases are in contact with a thermal switch. Dishwasher thermal overload switches can usually be found behind the bottom toe panel.

Thermal overload switch for air compressor thermal switch for overload thermal thermal overload switch l1 type 3 50 amp push to reset bimetal thermal switch wireless circuit breakers for generator overload protection fuse switch us 0 01 2 50 piece 1000 pieces min. Note that some appliance panels are held in place with small metal clips. To test the motor. This part protects your compressor from self destructing when things go wrong.

The compressor motor is not overheating but the reset switch just shuts the motor off from time to time and apparently randomly. When the current is too high for a too long time the overload relay trips. Check the voltage and current with the motor at full load. Othmro compressor protector household freezer thermal overload protection 750w 1hp overheat overload motor thermal protection replacement 2 pcs 4 7 out of 5 stars 13 9 95 9.

In single phase motors one single thermal switch is used. In three phase motors 2 thermal switches connected in series are placed between the phases of the motor. Locate the thermal overload switch behind the bottom toe or back panels of most residential clothes washers or dryers. While there are many circumstances that might cause this things like poor power supply too long compressor use between motor cool downs motor capacitor issues and a failing reset button could be the cause.

Regardless of where the compressor thermal reset button is on your compressor on the motor or on the shroud of the compressor it s purpose is to cut the power to the motor in the event that the motor itself gets too hot. Both internal and external motor overload protection work the same way. Remove the screws that hold the panel in place to free it.