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I'd try to stay about 16 amps to prevent the breaker from nuisance tripping.
That is as many as 32 - 60 watt incandescent (normal) lights or 83 - 23 watt CFLs. In practical terms it is hard to overload a single circuit with lights or other small loads (just about anything using a receptacle except the obvious AC unit or vacuum cleaner).
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∙ 11y ago
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What size circuit breaker is used for a 10000 watt single phase cooler with 240 volts?
The equation for amperage is Amps = Watts/Volts = 10000/240 = 41.6 amps. It is not stated if this is a motor load or not. If it is a motor load then the feeder has to be rated at 125% x 41.6 = 52 amp wire. Also if it is a motor load then the breaker will have to be 250% x 41.6 = 104 amps. A 100 amp breaker will work and still be within the electrical code ruling. Otherwise for 41.6 amps a 50 amp breaker will be sufficient.
What is the continuous current draw on a 20 amp circuit breaker?
Depends on what you have connected to the circuit. It is less than 10 amps or the breaker would trip. A rule of thumb is you design for about 80% load related to the breaker. For 20 amps that would equal 16 amps.
What size breaker do you need for a well pump?
A breaker is based on the amperage that is drawn by the pump motor load. Find the full load amperage of the motor. The wire fed from the breaker has to be rated at 125% of the motors full load amperage. The breaker for motors have to be over sized, usually 250% of the motors full load amps.
Will your spa work with a 40 amp breaker even if it says 50 amp on the plate?
No, because if you switch a 50-amp load on, it will blow a 40-amp circuit breaker if the load exceeds 40 amps, which is likely.
Can too much current on a breaker cause it to blow up?
The breaker will trip to the off position because of the heat caused by more amps than it is rated for. Only lightening strikes do odd things. And a loose breaker connection can arch causing limited damage to breakers. <<>> Only under extreme circumstances, like a lightning strike to the mast head. Breakers have a current interrupting rating. For a small home distribution breaker rated at 15 amps, it has an maximum RMS symmetrical interruption of 10,000 amperes. The breaker will not blow up but it will stop the current flow up to 10,000 amps. Under normal operation the breaker will trip when it reaches its operational set point, meaning that when the load current goes beyond the breakers rating, which is found on the handle, it will disconnect the circuit load.
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.
What size fuse required to supply a continuous load of 32 amps?
80% of 40 = 32 amps Load the circuit breaker to 80% choose a conductor to suit the circuit Breaker min.
Why 630 amps load breaker switch is used in ht line?
A circuit breaker is necessary to protect the equipment from faults.
What is the continuous current draw on a 20 amp circuit breaker?
Depends on what you have connected to the circuit. It is less than 10 amps or the breaker would trip. A rule of thumb is you design for about 80% load related to the breaker. For 20 amps that would equal 16 amps.
What size circuit breaker is used for a 10000 watt single phase cooler with 240 volts?
The equation for amperage is Amps = Watts/Volts = 10000/240 = 41.6 amps. It is not stated if this is a motor load or not. If it is a motor load then the feeder has to be rated at 125% x 41.6 = 52 amp wire. Also if it is a motor load then the breaker will have to be 250% x 41.6 = 104 amps. A 100 amp breaker will work and still be within the electrical code ruling. Otherwise for 41.6 amps a 50 amp breaker will be sufficient.
What size breaker do you need for a well pump?
A breaker is based on the amperage that is drawn by the pump motor load. Find the full load amperage of the motor. The wire fed from the breaker has to be rated at 125% of the motors full load amperage. The breaker for motors have to be over sized, usually 250% of the motors full load amps.
What is the effect of using a current trasformer CT meant for 630A breaker maximum load for 1200A breaker maximum load in relation to current measured and protection relays?
No good idea. The CT may not function well at a load beyond 630 amps. It may even fail at higher load (than 630 amps)
What breaker for 17.3 amps?
I would suggest a 20 amp breaker. * Added - I would suggest a 25 amp breaker. A slight surge, depending upon what equipment is the source of the 17.3 amp load, should not result in circuit breaker opening. <<>> In North America, the electrical code only allows circuit loading up to 80% on a continuous load. A 20 amp breaker can be legally loaded to 16 amps. A 25 amp breaker can be legally loaded to 20 amps.
Can you put 10-3 UF cable on a 50 amp circuit breaker?
A #10 copper conductor with an insulation rating of 90 degrees C is rated at 30 amps. The only time that a breaker larger that the load maximum capacity can used is in motor connections. A breaker can be used sized at 250% of the motor's full load amperage. In this case a 50 amp breaker can be used on a #10 conductor if the motor's full load amps falls within the amperage's of 20 - 22 amps.
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.
What circuit breaker rating do you need for a 3 phase electric motor?
The circuit breaker is sized to the full load amps of the motor times 250%.
What size awg do you need to install a 240v rec on a 50a breaker?
#8. It is better to error on the next large size. # 8 THHN 90 degree wire is rated at 45 amps. If there is a possibility that the breaker is connected to a 50 amp load the wire will be undersized. A #6 wire is rated at 65 amps. For continuous use, a load factor of 80% has to be applied. 65 x .8 = 52 amps. The only time the conductor can be smaller than the breaker size is on a motor feeder. Then the breaker is sized at 250% of the nameplate full load amps (FLA) rating of the motor. This is to allow the motor's starting current, which is about 300% FLA, to not trip the breaker on start up.
