EMERSON集團全資子公司THERM-O-DISC（簡稱T-O-D）生產的G4系列MICROTEMP®熱熔斷器，要根據產品規格不同，額定電流負載分別可達AC250V 10A、AC120V 15A和DC24V 5A，能提供可靠的過熱保護，在同行業產品中，G4系列MICROTEMP®熱熔斷器已經確立了其不可動搖的旗艦地位。
型號有：G4A01072C、G4A00072C、G4A01073C、G4A00073C、G4A01077C、G4A00077C、G4A01081C、G4A00081C、G4A01084C、G4A00084C、G4A01093C、G4A00093C、G4A01098C、G4A00098C、G4A01104C、G4A00104C、G4A01110C、G4A00104C、G4A01110C、G4A00110C、G4A01117C、G4A00117C、G4A01121C、G4A00121C、G4A01125C、G4A00125C、G4A01128C、G4A00128C、G4A01134C、G4A00134C、G4A01141C、G4A00141C、G4A01144C、G4A00144C、G4A01152C、G4A00152C、G4A01158C、G4A00158C、G4A01167C、G4A00167C、G4A01172C、G4A00172C、G4A01184C、G4A00184C、G4A01190C、G4A00190C、G4A01192C、G4A00192C、G4A01205C、G4A00205C、G4A01216C、G4A00216C、G4A01229C、G4A00229C、G4A01240C、G4A00240C、G4A01257C、G4A00257C
E4A01072C、E4A00072C、E4A01073C、E4A00073C、E4A01077C、E4A00077C、E4A01081C、E4A00081C、E4A01084C、E4A00084C、E4A01093C、E4A00093C、E4A01098C、E4A00098C、E4A01104C、E4A00104C、E4A01110C、E4A00104C、E4A01110C、E4A00110C、E4A01117C、E4A00117C、E4A01121C、E4A00121C、E4A01125C、E4A00125C、E4A01128C、E4A00128C、E4A01134C、E4A00134C、E4A01141C、E4A00141C、E4A01144C、E4A00144C、E4A01152C、E4A00152C、E4A01158C、E4A00158C、E4A01167C、E4A00167C、E4A01172C、E4A00172C、E4A01184C、E4A00184C、E4A01190C、E4A00190C、E4A01192C、E4A00192C、E4A01205C、E4A00205C、E4A01216C、E4A00216C、E4A01229C、E4A00229C、E4A01240C、E4A00240C、E4A01257C、E4A00257C
另外，G4和E4系列的溫度保險絲上面認證印的是JET和PSE的。可用于出口日本的各類家電產品上面。型號有：E4A51072C、E4A50072C、E4A51073C、E4A50073C、E4A51077C、E4A50077C、E4A51081C、E4A50081C、E4A51084C、E4A50084C、E4A51093C、E4A50093C、E4A51098C、E4A50098C、E4A51104C、E4A50104C、E4A51110C、E4A50104C、E4A51110C、E4A50110C、E4A51117C、E4A50117C、E4A51121C、E4A50121C、E4A51125C、E4A50125C、E4A51128C、E4A50128C、E4A51134C、E4A50134C、E4A51141C、E4A50141C、E4A51144C、E4A50144C、E4A51152C、E4A50152C、E4A51158C、E4A50158C、E4A51167C、E4A50167C、E4A51172C、E4A50172C、E4A51184C、E4A50184C、E4A51190C、E4A50190C、E4A51192C、E4A50192C、E4A51205C、E4A50205C、E4A51216C、E4A50216C、E4A51229C、E4A50229C、E4A51240C、E4A50240C、E4A51257C、E4A50257C G4A51072C、G4A50072C、G4A51073C、G4A50073C、G4A51077C、G4A50077C、G4A51081C、G4A50081C、G4A51084C、G4A50084C、G4A51093C、G4A50093C、G4A51098C、G4A50098C、G4A51104C、G4A50104C、G4A51110C、G4A50104C、G4A51110C、G4A50110C、G4A51117C、G4A50117C、G4A51121C、G4A50121C、G4A51125C、G4A50125C、G4A51128C、G4A50128C、G4A51134C、G4A50134C、G4A51141C、G4A50141C、G4A51144C、G4A50144C、G4A51152C、G4A50152C、G4A51158C、G4A50158C、G4A51167C、G4A50167C、G4A51172C、G4A50172C、G4A51184C、G4A50184C、G4A51190C、G4A50190C、G4A51192C、G4A50192C、G4A51205C、G4A50205C、G4A51216C、G4A50216C、G4A51229C、G4A50229C、G4A51240C、G4A50240C、G4A51257C、G4A50257C
