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A 60 watt light bulb, powered by a 120 volt circuit (obviously), will use .5 amps of electricity. Subtract a 25% safety margin from the breaker size (1.5 amps in this example) and you are left with 4.5 amps. .5 goes in to 4.5 eight times.
That formula can be used for calculating all electrical loads (the PIE Formula).
"P" for power in volts (120 or 240) times "I" (amps) equals "E" for energy used (in watts).
Don't forget to leave the "margin of safety".
Hope this helps.
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∙ 12y ago
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How many lights can run off a 15 amp breaker?
Depends on the wattage. For example a 60W incandescent bulb draws about 1/2 amp so you could have thirty. Since you typically de-rate to 80% of the value of the breaker it would be 24.
How many volts can you draw off of a 15amp breaker?
It's the amps that are controlled by the breaker not the volts. You can have a 600 volt 15 amp breaker, you can have a 347 volt 15 amp breaker. The breaker will trip when you exceed 15 AMPS.
How do you stop breaker from kicking off when electric heater is on?
try higher amp breaker
Is it ok to exchange a 20 amp breaker with a 40 amp breaker?
No. The 20 amp breaker is probably protecting a #12 wire. Connecting a 40 amp breaker to the 20 amp #12 wire would seriously overload the #12 wire. This means that if the load increased to a full 40 amps the insulation on the smaller size wire would most likely melt off and the wire could short out.
Parking lights will not turn off is it a relay or circuit breaker?
It is a relay or switch problem. A circuit breaker or fuse won't keep a light on.
How many lights can run off a 15 amp breaker?
Depends on the wattage. For example a 60W incandescent bulb draws about 1/2 amp so you could have thirty. Since you typically de-rate to 80% of the value of the breaker it would be 24.
How many volts can you draw off of a 15amp breaker?
It's the amps that are controlled by the breaker not the volts. You can have a 600 volt 15 amp breaker, you can have a 347 volt 15 amp breaker. The breaker will trip when you exceed 15 AMPS.
How do you stop breaker from kicking off when electric heater is on?
try higher amp breaker
How many wall plugs can be run off a 15 amp breaker?
Rule of thumb would be 8.
Why would the breaker kick off when adding a run of lights with a switch at the end of the lights?
I really need more detailed information to answer your question. How many lights were added and what wattage bulbs are being used? For a 15-amp breaker, the maximum wattage it would handle would be around 1650 watts. This would be about 16 100-watt bulbs. Does your breaker trip immediately when you turn the light switch on? If you have an ohmmeter you can check the tripped breaker. Put one lead on the black "hot" wire coming from the breaker. Remember, the breaker must be off. Then put the other lead on the ground bar. If the ohm reading is very low, close to 2 ohms, then you have a direct short to ground somewhere in your wiring.
Is it ok to exchange a 20 amp breaker with a 40 amp breaker?
No. The 20 amp breaker is probably protecting a #12 wire. Connecting a 40 amp breaker to the 20 amp #12 wire would seriously overload the #12 wire. This means that if the load increased to a full 40 amps the insulation on the smaller size wire would most likely melt off and the wire could short out.
What can you run off a 50 Amp breaker?
Anything that does not pull over 50 amps.
What gauge wire to run off a 20 amp breaker?
Use AWG 12/2 with ground.
How can you push 30 amp breaker to 50 amp?
Not if it's functioning properly. The purpose of a circuit breaker is to shut off power if the circuit exceeds the rated power capacity of the wires. Don't plan to exceed the 30 Amp capacity of your house wiring; the results will be destructive.
Parking lights will not turn off is it a relay or circuit breaker?
It is a relay or switch problem. A circuit breaker or fuse won't keep a light on.
Can you run a 1000 watts light bulb with a 20 amp breaker 120v?
Yes, considering you can do that on 15 amp breaker easy.Experience in construction field. The worst that will happen is that the breaker will trip off after a few minutes.In the formula W = A x V. W = 20 x 120 = 2400 watts. If you want you can operate two 1000 watt lamps from a 20 amp breaker operating on 120 volts.
How do you wire a 15 amp breaker?
Ground wire connects to the ground bar, white wire connects to the neutral bar, and black wire connects to the breaker. Be sure and turn off main breaker before installing the wire or the breaker.
