Appliances that need their own dedicated circuits
To operate safely, appliances need to be supplied by enough power. In fact some appliances need too much power to start that they need their own circuit breaker. This help to limit overload and trip the breaker.On the other hand, to supply that power the circuit breaker needs to be the right one and properly sized to avoid an electrical fire.
what do you understand by a dedicated circuit?
A dedicated circuit is a circuit which serves only one appliance or equipment. They are commonly used for appliances with a motor . The national electrical code requires that any appliance declared as critical-use needs its one circuit. No other appliance should be plugged in that same circuit.
Why do my appliances need their own dedicated circuits
As we said earlier, dedicated circuits are most of the time used by appliances that have motor. A motor needs a certain power to start up and when this one is not available, it will consume more current to compensate the mechanical energy that is applied. That mechanical energy tends to turn into a sound . The appliance will then reach the maximum current of the circuit breaker and if another appliance was served by the same circuit breaker, it will trip.
Dedicated circuits are also needed to avoid circuits overloads. When many electrical fixtures and appliances are served by the same circuit breaker, overloads can occur.
Critical in use appliances include refrigerators, furnaces or water heaters.
Appliances that need their own dedicated circuits:
Microwave ovens: Microwaves ovens became popular in the 1970s. they brought new level of convenience to homeowners. Microwaves need a dedicated circuit simply because they use huge amount of energy for cooking.
Electric water heater
Furnace (also heat pump)
Bathroom heater (including vent-fan heater units)