Product:RH(H)2A Thermal Fuse-Axial Type,RH(C)5A Series Thermal Fuse-Axial Type Rated Current/Voltage:2A/250V,5A/250V Rated Functioning Temperature: The temperature at which a thermal cut off changes its state of conductivity to open circuit with detection current as the only load. Fuse temperature: Functioning temperature of a thermal cutoff carrying current less thaan 0.01A and placing in an oil bath where temperature rises 0.25-0.5 per minute. Holding Temperature: Th is the maximum temperature at which a thermal cutoff can be maintained with functioning while conducting rated current for a period of 168 hours.