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20 amps on the circuit will trip it unless it is is broken. Then it may trip with a lower current or not at all... Any resistance added to the circuit from a bad or dirty connection will add to the total current causing it to trip sooner than expected.
Wiki User
∙ 14y ago
A 20 amp breaker will trip if the current exceeds 20 amps for an extended period of time. It is designed to protect the circuit from overheating and causing a fire hazard. So, it would take more than 20 amps to trip a 20 amp breaker.
Wiki User
∙ 9y agoThe rating on the handle of a breaker is the trip amperage. So to answer your question, it takes 20 amps to trip a 20 amp breaker. This is the same theory with all breaker amperage numbers.
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How can a 30 Amps fuse for a shower of 9.5KW be replace with a 40 Amps fuse on RCD trip?
If the current safety requirement is 30 amps, you can;t run if off of a larger circuit breaker. It violates NEC and is very unsafe. If the current requirement is 40 amps , it will continuously trip a 30 amp breaker because it is too small of a breaker in electrical requirement.
How many amps does it take to trip a 15 amp breaker?
It usually takes more than 15 amps to trip a 15 amp breaker, as breakers are designed to protect against overcurrents. However, factors like ambient temperature, length of wiring, and type of load can affect this. It is recommended to consult the manufacturer's specifications for the exact values.
How many volts can you draw off of a 15amp breaker?
On a 15 amp breaker, you can draw up to 120 volts in a standard residential circuit. The voltage remains constant at 120 volts, but the amperage capacity is what is limited by the 15 amp breaker.
I have a 15 amp tool hooked up to a 15 amp breaker- This trips the breaker even with nothing else running- There is also a GFCI outlet on the same circuit- Is the breaker or GFCI bad?
It is likely that the 15 amp tool is drawing more current than the breaker can handle, causing it to trip. The GFCI outlet might not be the issue here unless there is a ground fault causing it to trip. Consider using the tool on a circuit with a higher amperage breaker to prevent tripping.
How much current does it take to trip a 30 amp automotive circuit breaker?
In a typical US automobile, a 30 amp fuse will sustain a constant load of 360 watts. Fuses and circuit breakers perform on an "I squared t" rule. For example, a 30 amp fuse will not blow on 31 amps for a very long time. A 20 amp breaker can take anywhere from 10 minutes to two hours to trip on 25 amps. We simply dumb it down so that laymen and technicians need not make mistakes. Power on seven 100 watt light bulbs simultaneously. That means a circuit suddenly provides 50 amps. 50 amps does not trip a 15 amp or 20 amp breaker, again, due to the "I squared t" rule. A 50 amps load only exists for tens of milliseconds. Not long enough. A 30 amp continuous appliance will not trip a 30 amp breaker. But a safety margin means limiting 30 amp appliances to 26 amps or less. Meanwhile, an 18 gauge lamp cord wire typically rated for 10 amps will actually conduct up to 50 amps continuously. Again, that wire is oversized for other safety reasons. And to keep it simple. These concepts apply to fuses vehicles and structures.
How many amps would it take to kick a 15 amp breaker with 7 ohms resistance on a 277 volt circuit?
A 15 amp circuit breaker should trip at 15 amps regardless of the load voltages or impedances. If you have 277 volts and 7 ohms, the current would be 39.5 amps and a 15 amp circuit breaker should trip.
What is KA in Circuit Breaker?
KA stands for kilo-amps, or thousands of amps. Thus a 2KA breaker means it will trip when the load exceeds 2,000 amps.
How can a 30 Amps fuse for a shower of 9.5KW be replace with a 40 Amps fuse on RCD trip?
If the current safety requirement is 30 amps, you can;t run if off of a larger circuit breaker. It violates NEC and is very unsafe. If the current requirement is 40 amps , it will continuously trip a 30 amp breaker because it is too small of a breaker in electrical requirement.
How many amps does it take to trip a 15 amp breaker?
It usually takes more than 15 amps to trip a 15 amp breaker, as breakers are designed to protect against overcurrents. However, factors like ambient temperature, length of wiring, and type of load can affect this. It is recommended to consult the manufacturer's specifications for the exact values.
How many volts can you draw off of a 15amp breaker?
On a 15 amp breaker, you can draw up to 120 volts in a standard residential circuit. The voltage remains constant at 120 volts, but the amperage capacity is what is limited by the 15 amp breaker.
The Function Of A Twenty Amp Breaker?
It limits the current to the circuit at 20 Amps. If a load on the circuit draws more than 20 Amps the breaker will trip and interrupt the current to all devices on the circuit.
I have a 15 amp tool hooked up to a 15 amp breaker- This trips the breaker even with nothing else running- There is also a GFCI outlet on the same circuit- Is the breaker or GFCI bad?
It is likely that the 15 amp tool is drawing more current than the breaker can handle, causing it to trip. The GFCI outlet might not be the issue here unless there is a ground fault causing it to trip. Consider using the tool on a circuit with a higher amperage breaker to prevent tripping.
Can start amps of 27 trip a 15 amp circuit breaker?
No, a 27 amp start-up on a 15 amp circuit breaker can potentially overload the circuit and cause it to trip. It's recommended to use a circuit breaker that can handle the full current draw of the device to prevent tripping and ensure safety.
How many 115 volt outlets could you run from a 20 amp breaker?
If you never plug anything into them, there is no limit. If the total current drawn from all outlets exceeds 20 amps, the breaker will trip.
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.
What is the function of a 15 amp circuit breaker?
To trip when current is in excess of 15 amps and protect the circuit components.
Will a 4500 watt element work at all or just trip a 20amp breaker?
A 4500 watt element can work on a 20 amp breaker, but it may occasionally trip if the total load on the circuit exceeds 20 amps. It is recommended to use a 4500 watt element with a 25 amp breaker to ensure consistent performance.
