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A three phase 30 HP at 240 volts draws 80 amps. Motor feeders have to be rated at 125% of the motors full load amps. 80 x 125% = 100 amps.
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3 copper conductor with an insulation factor of 75 or 90 degrees C are rated at 100 and 105 amps respectively.
Non-time delay fusing is 225 amps, time delay fusing is 125 amps and a circuit breaker is sized by 250% x 80, the full load amps, which equals 200 amps.
What else can I help you with?
Can i wire a 7.2 volt motor up to a 18 volt battery will it just burn the motor out?
you can but if you do, you will/might: A) kill the motor,B)overload your 18 volt power supply, and C) maybe short a breaker if your power supply is also an ac to dc converter
Fuse size for 7.5 HP 3 Phase 440 Volt Motor?
The electrical code states that a 7.5 HP 460 volt three phase motor draws 11 amps. For fuse sizes, non time delay - 30 amps, time delay type D - 20 amps and if using a breaker it will be 30 amps. Minimum wire size is #12 and the maximum setting of overload devices will be 13.75 amps
What the the correct size capacitor for a three quarter horsepower 110 volt motor?
110v 40 uf
What is the Largest amperage single phase 120 volt breaker made?
6000amps <<>> The above answer must have big lugs to accommodate 6000 amp capacity wire. In my breaker catalogue the largest 120 volt single pole breaker is 70 amps, 277 volt single pole is 150 amps and 347 volt single pole is 100 amps. The 120 volt single pole breaker occupies two opposed slots because of its length.
What is the full load running current of a 3hp 208volt single phase continuous duty ac motor?
It would probably be 20-30 amps. <<>> The electrical code book states a value of 18.7amps for a 3HP 208 volt motor. If the nameplate data is available it is always best to use it when calculating wire size and overload protection for the motor.
What is the appropriate size of a breaker needed for a 240-volt circuit that requires a 50 amp breaker?
For a 240-volt circuit that requires a 50 amp breaker, the appropriate size of the breaker needed is 50 amps.
What size breaker for a 208 volt single phase motor that pulls 1.4 amps?
208 volts is not a common single phase voltage but you could just size your breaker to the capabilities of the conductor. 208 is normally a phase to phase voltage <<>> Many 230 volt motors can be connected to lower voltage supplies. These motors can be connected to supplies of 208 and 200 volts. The code requirement is that the 230 volt full load amperage of the motor be increased by 10% and 15% respectively for wire sizing and breaker selection. To answer the question you will need a two pole 15 amp breaker.
What is breaker size for 240 volt 9 KW?
The formula you are looking for is I = W/E.
How many amp circuit breaker for 3 hp 230 volt motor?
16A
What size breaker for a 1500 watt 120 volt heater?
To calculate the breaker size for a 1500-watt 120-volt heater, use the formula: Breaker size = Power (Watts) / Volts. In this case, 1500 watts / 120 volts = 12.5 amps. Therefore, you would need a 15-amp breaker for a 1500-watt 120-volt heater to allow for a safety margin.
Can i wire a 7.2 volt motor up to a 18 volt battery will it just burn the motor out?
you can but if you do, you will/might: A) kill the motor,B)overload your 18 volt power supply, and C) maybe short a breaker if your power supply is also an ac to dc converter
How many amps is a 3 hp 240 volt motor use?
AWG #10 copper on a 30 amp breaker.
You are putting in a 240 volt 4000 watt heater in a room what size breaker do you need?
20 amp
What size battery do you need for a 4.5 volt DC motor?
4.5 volt battery sold only in Russo
What is the breaker size for a 10 KVA electric heater?
The breaker size for a 10 KVA electric heater would depend on the voltage it operates at. For example, for a 240V heater, you would need a 41.67 Amp breaker (10,000 VA / 240V = 41.67 A). It is important to consult with a licensed electrician to ensure the correct breaker size and electrical setup for your specific heater.
How do you test a 220 volt breaker?
You will need a multimeter to check a 220 volt breaker. You should unplug appliances that go to that particular breaker. Use the multimeter at the breaker to check the voltage. If it shows 220, then the breaker is okay. If it doesn't, then the breaker is no good.
What amperage breaker to run 500 watt 240 volt heater?
To run a 500 watt 240 volt heater, you would need a 2.08 amp breaker. This can be calculated by dividing the wattage by the voltage (500W / 240V = 2.08A). You would typically round up to the nearest standard breaker size, which in this case would be a 3 amp breaker.
