Main Circuit Breaker: This is the primary switch that controls the flow of electricity from the utility to the entire home. It can shut off power to all circuits in case of an emergency or maintenance . Individual Circuit Breakers: These switches control electricity to specific areas or appliances in the home, such as lighting circuits, kitchen outlets, or HVAC systems. Each breaker trips automatically if the circuit is overloaded, preventing damage or fire . Residual Current Devices (RCDs) / Ground Fault Circuit Interrupters (GFCIs): Some distribution boxes include these safety switches, which cut off power if they detect leakage currents, protecting against electric shocks . Bus Bars: While not switches themselves, bus bars distribute power from the main breaker to the individual breakers, ensuring organized and safe electricity flow . Specialized Switches: In some homes, there may be double-pole breakers for high-power appliances like ovens or water heaters, and sometimes surge protection switches to safeguard electronics .
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The Power Company: Your electrical utility company and its distribution system bring power over wires and through switches and
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