번역될 언어: 영어
Various power switches were used in the factory. They are of great importance regarding the security of machinery and the security of life, because the contact between people and machines is by means of the power switch. It is one of the most important elements used in the protection of the engine and of the lines. They turn the circuit on and off directly. In case of excess loading, according to the current-time types of their thermal elements, they switch the circuit off without delay in short circuits by means of their magnetic relays, preventing the lines and the engine from suffering any damage
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