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Can you use a 14 romax for receptacle?
Yes you can use #14 AWG romex for a receptacle as long as the breaker protecting it rated 15 amps or less. If it is a 20 amp rated circuit then you will need to use #12 AWG.
What kind of circuit breaker should you use with aluminum wire?
Almost all circuit breakers are rated for copper (cu) or aluminum (al), there is a label on every breaker made, as long as it has the (al) marking it is suitable for use with aluminum wire
Could you use a 12gauge wire for a 25 amp breaker single pole?
No a #12 wire is only rated for 20 amps. The 40 amp breaker will not protect the #12 wire. A 40 amp breaker should have a #8 wire connected to it which is rated at 45 amps. The only time that a breaker is allowed to be bigger that the wire size rating according to the electrical code is when a motor is connected to the breaker. This is to stop the 300 percent inrush of the motor full load amps from nuisance tripping a smaller sized breaker.
Can you use 480v breaker with 208v?
Yes the voltage rating of devices is the maximum amount of voltage that it can handle. You could not use a 480 volt breaker on a 600 volt service and like wise you could not use a 208 volt rated breaker on a 480 volt service.
Can you use a 40 amp breaker to feed a sub panel?
Yes, you can use a 40 amp breaker to feed a sub panel. The wire from the 40 amp breaker must be #8 or larger. If you intend to use the full 40 amps a larger conductor must be used. Conductors can only be loaded to 80% capacity in continuous load conditions. A #8 wire is rated at 45 amps x 80% = 36 amps. The suggested size would be a #6 rated at 65 amps x 80% = 52 amps.
What breaker size do you use for a 270 Kw power rated equipment and power supply of 380 vac 3 phase?
I=270000/380/1.732 I=410A USE: 500A CIRCUIT BREAKER
What causes circuit breaker to trip even when it's properly rated?
A circuit breaker is dual function. The only time it will trip is if it senses a fault current that is rated higher than the breaker rating (short circuit). The other trip condition is if the circuit is overloaded and is drawing a current higher than the breaker rating. On breakers that protect motor feeders the breaker has to be rated 250% higher than the motors full load amperage. If the breaker has lots of use and is used for a switch being manually turned off and on will weaken the trip value of the breaker. If you have access to, or know an electrician, a clamp on amp meter on the conductor that the breaker feeds will tell you what is happening. Clamp the line and turn on the load to see exactly what the current is. If, like you say, the breaker is properly rated and the current is within the breaker limits then change out the breaker for a new one.
What wire to use on 20 amp breaker?
A #12 copper conductor with an insulation factor of 90 degrees C is rated at 20 amps. A #14 conductor can not be connected to a 20 amp breaker as that conductor is only rated at 15 amps.
Can you use a 14 romax for receptacle?
Yes you can use #14 AWG romex for a receptacle as long as the breaker protecting it rated 15 amps or less. If it is a 20 amp rated circuit then you will need to use #12 AWG.
Do motors normally use the full rated current?
Motors doesn't use its maximum rated current because the circuit breaker will trip immediately or is tripped off easily if there are fluctuations in our voltage regulations.
Is it OK to have 250 A of breakers in a 100 A panel?
Yes. Many installations have breaker totals higher that the main breaker of the panel. It is worked on a percentage basis. Not all of the breakers will be on at the same time. In a home, on a 100 amp panel the average load is 50 - 60 amps. The 100 amp main breaker is protecting the 100 amp rated panel board. If the load current goes higher that the panel board is rated at, the main breaker will trip to protect the board.
How do you calculate rated kva of a circuit breaker?
You don't calculate the rated kV.A of a circuit breaker; it's determined by the manufacturer. It's important that a circuit breaker's rated kV.A exceeds the fault level kV.A at the point where the circuit breaker is located, otherwise it may fail to interrupt a fault current and, possibly, self destruct.
Should 25 amps breaker be replaced by 20 amps?
For typical residential house wiring 12 AWG wire is required for a 20 Amp breaker. If you change out the breaker for a 25 A breaker you would have to rewire the circuit with 10 AWG. In that case you could up the breaker to 30 Amps. All outlets and switches should be rated at the same voltage and current as the breaker.
What kind of circuit breaker should you use with aluminum wire?
Almost all circuit breakers are rated for copper (cu) or aluminum (al), there is a label on every breaker made, as long as it has the (al) marking it is suitable for use with aluminum wire
What are the ratings and certificates for Joey Breaker - 1993?
Joey Breaker - 1993 is rated/received certificates of: USA:R
What are the ratings and certificates for Prison Breaker - 1936?
Prison Breaker - 1936 is rated/received certificates of: UK:A
Could you use a 12gauge wire for a 25 amp breaker single pole?
No a #12 wire is only rated for 20 amps. The 40 amp breaker will not protect the #12 wire. A 40 amp breaker should have a #8 wire connected to it which is rated at 45 amps. The only time that a breaker is allowed to be bigger that the wire size rating according to the electrical code is when a motor is connected to the breaker. This is to stop the 300 percent inrush of the motor full load amps from nuisance tripping a smaller sized breaker.
