Turn-off device and photovoltaic module

The invention relates to the technical field of photovoltaic power generation, in particular to a turn-off device and a photovoltaic module, the turn-off device comprises a controller, a detection circuit and a switching device, the detection circuit is used for being connected with the output end of a photovoltaic panel to detect whether the corresponding photovoltaic panel quits power supply; the output end of the detection circuit is connected with the signal input end of the controller, the control end of the controller is connected with the switching device, and when the detection circuit outputs a low level, the controller outputs a high level; the switching device is used for being connected with a bypass diode circuit in parallel. The invention has the effect of reducing the heating value of the bypass diode circuit. 本申请涉及光伏发电技术领域，尤其是涉及一种关断器及光伏组件，其包括控制器、检测电路和开关器件，所述检测电路用于与光伏板输出端连接，以检测对应光伏板是否退出供电；所述检测电路的输出端与所述控制器的信号输入端连接，所述控制器的控制端与所述开关器件连接，当检测电路输出低电平时，所述控制器输出高电平；所述开关器件用于与旁路二极管电路并联。本申请具有减少旁路二极管电路发热量的效果。