A refrigerator, comprising: a body; a storage compartment (12, 13) provided at an inside of the body to store food; and a cool air supplying apparatus having a compressor, a condenser, an expansion valve, an evaporator, a draft fan, and a cool air duct, wherein a relay module, which is configured to control the supply of power and to prevent a damage due to a overload, is coupled to the compressor, and the relay module comprises: a case forming an exterior of the relay module and having a holder accommodating unit; a Positive Temperature Coefficient device configured to control the supply of power to the compressor; an overload protector configured to shut off the supply of power in a case an overload occurs at the compressor; a start capacitor electrically connected to the PTC device; a first connecting terminal and a second connecting terminal configured to electrically connect the PTC device to the start capacitor; a separating chamber formed among the first connecting terminal, the second connecting terminal and a bottom surface of the case to prevent a tracking from occurring between the first connecting terminal and the second connecting terminal due to a foreign substance; and a holder that is disposed at the case so as to accommodate the PTC device, wherein the separating chamber is formed between the holder and the bottom surface of the case, and the holder is fitted to the holder accommodating unit such that the holder is spaced apart a predetermined distance from the bottom surface of the case, characterized in that the holder comprises a PTC device insertion hole accommodating the PTC device and a pair of opening parts formed at both sides of the PTC device insertion hole, and wherein the PTC device is connected to the first connecting terminal and the second connecting terminal, disposed at either side of the holder, through the pair of opening parts formed at both sides of the holder. a body; a storage compartment (12, 13) provided at an inside of the body to store food; and a cool air supplying apparatus having a compressor, a condenser, an expansion valve, an evaporator, a draft fan, and a cool air duct, wherein a relay module, which is configured to control the supply of power and to prevent a damage due to a overload, is coupled to the compressor, and the relay module comprises: a case forming an exterior of the relay module and having a holder accommodating unit; a Positive Temperature Coefficient device configured to control the supply of power to the compressor; an overload protector configured to shut off the supply of power in a case an overload occurs at the compressor; a start capacitor electrically connected to the PTC device; a first connecting terminal and a second connecting terminal configured to electrically connect the PTC device to the start capacitor; a separating chamber formed among the first connecting terminal, the second connecting terminal and a bottom surface of the case to prevent a tracking from occurring between the first connecting terminal and the second connecting terminal due to a foreign substance; and a holder that is disposed at the case so as to accommodate the PTC device, wherein the separating chamber is formed between the holder and the bottom surface of the case, and the holder is fitted to the holder accommodating unit such that the holder is spaced apart a predetermined distance from the bottom surface of the case, characterized in that the holder comprises a PTC device insertion hole accommodating the PTC device and a pair of opening parts formed at both sides of the PTC device insertion hole, and wherein the PTC device is connected to the first connecting terminal and the second connecting terminal, disposed at either side of the holder, through the pair of opening parts formed at both sides of the holder. a case forming an exterior of the relay module and having a holder accommodating unit; a Positive Temperature Coefficient device configured to control the supply of power to the compressor; an overload protector configured to shut off the supply of power in a case an overload occurs at the compressor; a start capacitor electrically connected to the PTC device; a first connecting terminal and a second connecting terminal configured to electrically connect the PTC device to the start capacitor; a separating chamber formed among the first connecting terminal, the second connecting terminal and a bottom surface of the case to prevent a tracking from occurring between the first connecting terminal and the second connecting terminal due to a foreign substance; and a holder that is disposed at the case so as to accommodate the PTC device, wherein the separating chamber is formed between the holder and the bottom surface of the case, and the holder is fitted to the holder accommodating unit such that the holder is spaced apart a predetermined distance from the bottom surface of the case, characterized in that the holder comprises a PTC device insertion hole accommodating the PTC device and a pair of opening parts formed at both sides of the PTC device insertion hole, and wherein the PTC device is connected to the first connecting terminal and the second connecting terminal, disposed at either side of the holder, through the pair of opening parts formed at both sides of the holder.