Appliances that need their own dedicated circuits

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appliances that need their own dedicated circuit

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.
  • Refrigerator
  • Air conditioner
  • Freezer
  • Dishwasher
  • Electric water heater
  • Furnace (also heat pump)
  • Bathroom heater (including vent-fan heater units)
  • Garbage disposal
  • Sump pump
All these previous appliances consume a huge amount of power . For some of them, like an electrical water heater for example a permit might be required for installation. The service panel should have all dedicated circuits well labeled.
It is also important to differentiate between dedicated and designated circuits. While a dedicated circuit is used to serve only one appliance, a designated circuit in another hand is used to serve  02 appliances. Most of the time, designated circuits are those found in laundry rooms. In such cases, one outlet circuit is used for both washer and dryer, in case of a gas dryer. Check this article to learn more .

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