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To answer this question a voltage must be given. Watts = Amps x Volts.
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Answer
At 115 volts ac, 30 amps equals 3,450 watts.
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∙ 13y ago
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How many watts can be on a 15amp breaker?
At 120 volts a 15 amp breaker can be loaded to 1800 watts before it will trip. If it is a continuous load then the electrical code states that it is only allowed to be loaded to 80%. This will be 1800 x .8 = 1440 watts. If the voltage is not 120 volts use the following equation Watts = Amps x Volts. Amps being the breaker size that is to be used.
If a 120 volt current is protected by a 25 amp circuit breaker What is the largest number of watts an appliance can safely use?
if its a single current its 120v X 25 amp = 3000 watts
How many watts can you run in 20 amp?
20 Amp * 120 Volts = 2400 Watts 2400 Watt * 80% max use = 1920 Watts planned normal usage for a circuit with a 20 Amp breaker.
What size breaker needs to be installed for 15000 watt 240 volt heater?
15,000 watts at 240 volts will use 62.5 amps. Therefore you will need to use AWG #3 wire on a 100 amp breaker.
How many watts does a 4.5 amp refrigerator use?
The formula you are looking for is Watts = Amps x Volts.
What is the wire size required for 1800 watts for lamps?
14 gauge will handle it with a 15 amp breaker. If you use 12 gauge use a 20 amp breaker.
How many watts can be on a 15amp breaker?
At 120 volts a 15 amp breaker can be loaded to 1800 watts before it will trip. If it is a continuous load then the electrical code states that it is only allowed to be loaded to 80%. This will be 1800 x .8 = 1440 watts. If the voltage is not 120 volts use the following equation Watts = Amps x Volts. Amps being the breaker size that is to be used.
How many watts on a 40 amp circuit breaker?
about 4800 watt but should not use it 100% so to be safe 4000 watt (80%)
If a 120 volt current is protected by a 25 amp circuit breaker What is the largest number of watts an appliance can safely use?
if its a single current its 120v X 25 amp = 3000 watts
Can you use 14 wire for a light off a 20 amp circuit?
Yes, in home wiring as long as it is protected by a 15 amp breaker. Remember this circuit will only handle 1800 watts and cannot be loaded to any more than 1440 watts. So if each light is 75 watts then the maximum you can install is 19.
How many watts can you run in 20 amp?
20 Amp * 120 Volts = 2400 Watts 2400 Watt * 80% max use = 1920 Watts planned normal usage for a circuit with a 20 Amp breaker.
Can you use a 60 amp breaker with a 50 amp overcurrent device?
A 50 amp breaker is an overcurent device.
What size breaker needs to be installed for 15000 watt 240 volt heater?
15,000 watts at 240 volts will use 62.5 amps. Therefore you will need to use AWG #3 wire on a 100 amp breaker.
How many watts does a crock pot use?
Watts divided by voltage. Standard crockpot use 1-2 amp.
How many watts does a 4.5 amp refrigerator use?
The formula you are looking for is Watts = Amps x Volts.
What size wire do you use for 240 volt 8.3 amps 2000 watts baseboard unti?
If you use a 20 amp breaker, you would need to use 12 AWG wire. If you use a 15 amp breaker, you could use 14 AWG. As always, make certain that you comply with all local wiring codes.
What size breaker you would use for a 110 volt window air conditioning unit?
Breaker sizing is dependant on what the load amperage is that the breaker is connected to. If the amperage is not given but just the wattage, use this equation I = W/E. Amps = Watts/Volts. This air conditioner unit should be on a dedicated circuit receptacle. On these types of loads the conductor can only be loaded to 80% of the conductors rating. So a 15 amp breaker times 80% = 12 amps or Watts = Amps x Volts, 12 x 120 = 1440 watts. A 20 amp breaker times 80% = 16 amps or Watts = Amps x Volts, 16 x 120 = 1920. Once the breaker is sized remember to use the correct wire size to correspond with the amperage of the breaker.
