Embodiments of the present disclosure provide a terminal assembly for an electrical device and an electrical device comprising the same. The terminal assembly comprises: a first terminal comprising a terminal seat and a screw in a threaded connection with the terminal seat, a cavity for receiving a wire being formed in the terminal seat; and a second terminal, comprising: a body provided with a hook thereon, wherein the first terminal is adapted to be connected with the second terminal via the hook; and a clamping arm with one end connected with the body and the other end being a free end adapted to cooperate with the body for clamping the wire. Such terminal assembly can provide two different types of terminals to adapt to criteria in different countries and areas, and thus can broaden the application range of the product.