1.Warm-up temp enactment. 2.Temperature rising off and buckle setting. 3.Self-resetting . thermal protector Using scope:It is fit for hair drier , dehumidify machine , heat fan and so on.Technical Parameters:Rated voltage: 50/60HZ, 250V, ACNominal current: 8 AFixed break-off temperature scope: +70 °C ~+150 °C, take 5 °C as a grade Tolerance: (+/-)5KCertification: UL ,VDE,SGS