pääkatkaisijoiden
Pääkatkaisijat, known in English as main switches or master switches, are crucial electrical safety devices. Their primary function is to disconnect all electrical circuits in a building or on a specific piece of equipment from the power supply. This is essential for preventing electrical hazards during maintenance, repairs, or emergencies. A pääkatkaisija is typically located at the main service entrance where power enters a structure or directly on a machine.
There are several types of pääkatkaisijat, including fuses, circuit breakers, and disconnect switches. Fuses contain a