Схема пуск стоп

Description. Basics of the electrical circuit. I connected a lamp to the power pins to demonstrate how the circuit works. I connect in series a stop button (normally closed contact, opens when pressed) and a start button (normally open contact, contacts close when pressed) to the coil of contactor A2 (phase L1). Connect zero (N) to the second pin of coil A1. I press the start button, the coil is energized, the contactor is activated. After the stop button, I removed the phase and through the normally open contact of the contactor connected it to coil A2 (parallel to the start button). Now, when the start button is turned on, voltage is applied to A2, the contactor is turned on. I release the start, but voltage is still applied to A2 through the normally open contact (contactor on, contact closed). The contactor remains on until the stop button is pressed. It opens the phase circuit (voltage off) and the contactor switches off. The circuit is ready to work, press start.