To operate safely, appliances need to be supplied with enough power. In fact, some appliances need too much power to start with. That’s one of the reasons why they need their own circuit breaker.
On the other hand, to supply that power, circuit breakers need to be the right one and properly sized to avoid unplanned events like an electrical fire.
what do you understand by a dedicated circuit?
A dedicated circuit is a circuit that serves only one appliance or equipment. They are commonly used for appliances that incorporate a motor. The national electrical code requires that any appliance declared as critical-use needs its own circuit. No other appliance should be plugged in that same circuit.
Why do my appliances need their own dedicated circuits
Motors need a certain power to start up and when this one is not available, they run 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 allowed by the circuit breaker . In case other appliances are served by the same circuit breaker, it will trip.
In addittion to that, dedicated circuits are used to limit circuits overloading. This occurs when many electronic appliances are connected to the same circuit breaker.
Critical in use appliances include refrigerators, furnaces or water heaters.
Appliances that need their own dedicated circuits:
Below are the most hungry appliances that homeowners should take care of:
Microwave ovens: Microwaves ovens became popular in the 1970s. they brought a new level of convenience to homeowners. Microwaves need a dedicated circuit simply because they use a huge amount of energy for cooking.
Electric water heater
Furnace (also heat pump)
Bathroom heater (including vent-fan heater units)
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 .