Motor dual protection belt alarm automation control device

The utility model discloses a motor temperature protective device, especially to a motor dual protection belt alarm automation control device. A first branch is composed of an experiment button SB, a stop button SR, a contactor KM, a normally-closed contact 2KV-1 of a relay 2KV, a normally-closed contact 4KV-1 of a relay 4KV and a normally-closed contact FR-1 of a thermal relay which are sequentially connected in series from a U phase of a three-phase power supply, and is connected to a W phase of the three-phase power supply. The experiment button SB is connected in parallel with a normally-open contact KM-4 of a contactor KM, a normally-open contact 1KV-2 of an intermediate relay 1KV and a normally-open contact 3KV-2 of an intermediate relay 3KV. A second branch is composed of a contact 1SP-1 of a first electric contact air pressure gauge, a normally-closed contact KV-1 of the contactor KM and the intermediate relay 1KV which are sequentially connected in series from an anode of a direct-current power suppl