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What size wire do you need to run a 220 pump 40 amp breaker 130 feet?
This is a tricky question to answer without all of the information necessary for calculations. A motor has to have a breaker sized at 250% of the motor's full load amps. Wire is sized by the amount of amperage that it is allowed to carry.If the breaker is sized at 250% then the motor's full load amperage must be 16 amps if this is the case then the conductor for 16 amps at 130 feet will be #12 copper or #10 aluminium. the insulation rating for the conductors must be 90 degrees C.If the motor's full load amperage is 40 amps then the conductors, both copper and aluminium must have an insulation factor of 90 degrees C ad the wire size will be #6. The breaker for this pump must then be a 100 amp breaker. The larger size breaker is used so that it does not trip due to the inrush current when the motor starts. It could be in the range of 300 to 600% of the motors full load amperage.
Convert 262 mcm to AWG?
Using the AWG for wire sizes only goes up to 4/0. After that the increases use MCM to size the wire. So your 262 MCM wire size will be same in AWG. There is no 262 MCM in the North American market place. It goes in 50 MCM increments starting at 250 MCM , 300 MCM, 350 MCM, 400 MCM right up to 2000 MCM cable.
What size breaker is needed for a 125 hp motor?
It depends on what the amperage of the motor is. The motors amperage depends on the voltage of the motor. The higher the voltage the motor operates on the lower the amperage. So unless the amperage from the motor's nameplate is stated an answer can not be given.Just remember that the feeder capacity to the motor has to be 125% of the motors full load amperage and the breaker protecting the conductors to the motor has to be rated at 250% of the motors FLA. This higher breaker size allows the motor to start without tripping a normal size breaker that is rated for the lower conductor size.
LRA is 134 AMPS. what size breaker should be used?
LRA (locked rotor amps) is not used to calculate the breaker size. Breaker's are used to protect the size of the conductor that is connected to it. Motor calculations are based on the motor's FLA (full load amps).Conductor size is 125% of the motor's FLA.Breaker size is 250% of the motor's FLA.This is the only occasion when the breaker is sized larger that the conductors maximum amperage rating. This is due to the motor drawing up to 300 to 600% of its FLA when starting.If you state the motor's wattage, voltage or amperage this calculation can be calculated here.
What size aluminum wire for a 220v 200a service in conduit undrreground at 180 ft?
250 MCM aluminum minimum
What size wire is needed to operate a three quarter horsepower opener 250 ft from the breaker?
Wire size is calculated from the amount of current the load draws. More information is needed. Voltage and amperage will do fine.
What size wire does a 70 amp breaker require?
A breaker is sized by the conductor that is connected to it but also the load that is connected to the breaker. There are some cases such as motor loads where the breaker has to be 250% of the motors full nameplate amperage.A #4 aluminium conductor with an insulation factor of 90 degrees C is rated for 75 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.
What size aluminum wire does a 60 amp breaker need?
A breaker is sized by the conductor that is connected to it but also the load that is connected to the breaker. There are some cases such as motor loads where the breaker has to be 250% of the motors full nameplate amperage.A #6 aluminium conductor with an insulation factor of 90 degrees C is rated for 55 amps.
What wire size should you use with a 30 amp breaker?
No! The minimum wire size allowable is 10 gauge for a 30 amp circuit. Don't risk the chance of an inner wall fire because too small of a wire gauge was used. Never shortcut anything to do with electrical wiring. Never.
What size wire for 250 amps?
15mm approx.
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.
How do you calculate breaker capacity of 10 hp three phase induction motor?
The first thing you have to do is find the full load amps of the motor. The wire size feeding the motor has to be 125% of the full load current. The breaker is usually 250% of the full load current. If the voltage and amperage had been added to the question the exact breaker size could have been calculated.
What size of breaker is use for 75 horsepower 220 volts 3 phase induction motor?
500 amp breaker with 250 mcm cu conductors, NEC list this motor as drawing 192 amps X 250% = 480amps go to the next standard size of breaker which would be a 500.
Can you run a 10 gauge wire 250 feet to the barn on a 120 amp breaker in the house If not what amp breaker should I use?
#10 cable is no good for 120 amps, you need #2 cable, and it can be used at a distance of 250 ft.
What size wire do you need to run a 220 pump 40 amp breaker 130 feet?
This is a tricky question to answer without all of the information necessary for calculations. A motor has to have a breaker sized at 250% of the motor's full load amps. Wire is sized by the amount of amperage that it is allowed to carry.If the breaker is sized at 250% then the motor's full load amperage must be 16 amps if this is the case then the conductor for 16 amps at 130 feet will be #12 copper or #10 aluminium. the insulation rating for the conductors must be 90 degrees C.If the motor's full load amperage is 40 amps then the conductors, both copper and aluminium must have an insulation factor of 90 degrees C ad the wire size will be #6. The breaker for this pump must then be a 100 amp breaker. The larger size breaker is used so that it does not trip due to the inrush current when the motor starts. It could be in the range of 300 to 600% of the motors full load amperage.
What size wire for 250 v AC?
Wire size is not dependent on voltage - it is dependent on current. Please restate your question and provide the expected branch current.
