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How much rpm for 120v?

The revolutions per minute (RPM) of a device running on 120V will depend on the specific motor or mechanism of the device. Different motors and equipment are designed to operate at different speeds, so it's important to refer to the manufacturer's specifications for the RPM of a particular device running on 120V.


How do you wire 240V to 120V?

What specifically are you wiring? A light bulb would operate dim, a motor will burn up. The current increases thereby requiring larger wire and current protection.


How much current will a 5 hp 1 phase 120V motor pull?

The largest 120V motor generally available is 3hp. A 3hp, 120V motor draws about 30 amperes. All true 5hp motors I have seen are 230V or higher. Note that some motors, such as compressors and vacuum cleaners, use artificially high hp numbers to entice you to buy their unit (they will use terms like peak-developed hp, etc.). These ratings are not true hp, and you just have to go by the nameplate rating on the unit. For instance, I have a Sanborn Air Compressor that claims 4 PEAK horsepower, yet only draws 17 amperes at 120V. Its really closer to a 2hp motor.


What makes a 480 motor with up down and stop 120v switch work?

I think I understand what you are asking. 3-phase motors usually are equipped with a starter or contactor, since all 3 hot wires need to be switched. The control voltage that runs the starters is 120V, because it's safer and also 120V switches and relays are cheaper. You would have a 480-120V transformer (called a control transformer) in the starter box to provide the 120V "control voltage". So the arrangement you describe would have two contactors, with two phases reversed between them. Energize one, and the motor runs forward. Energize the other, and it runs reverse. The switch sends 120V to each of the contactors, which are equipped with 120V coils.


What will happen when the shunt motor is connected across the supply line directly?

If the motor is designed for 120V or 220V whatever the case, it will function properly.If it is a 12V motor and you supply 120V it will make a mess and you will probably get hurt from flying debris!


Can you operate a 120V 60 hertz tv on 120V 50 hertz?

no because the tv can only pick up siginals at 60Hz if the signal is 50 Hz it won't pic it up.


Where can you find a 120V electric power cable?

One can find a 120V electric power cable in stores such as Lowe's or Home Depot. It can also be purchased online through the store websites or through sites like rakuten for a cheaper price.


What is a reverse connected 120V ballast?

A reverse connected 120V ballast is a type of ballast that can operate a fluorescent lamp with reversed polarity. This means that it allows the lamp to be connected to the power source in reverse compared to a standard ballast, providing flexibility in certain lighting applications.


The Norelco Reflex Plus 7310XL says it's dual voltage...What does that mean...Does it work overseas?

Dual voltage means it will operate safely with either 110/120V or 220/240V and all you need to operate it overseas is an electric adapter plug.


Can 120v 20w bulb be used in low voltage 12 volt system?

No, a 120V 20W bulb cannot be used in a 12V system. The bulb is designed to operate at 120V, and using it in a 12V system would likely cause it to burn out or malfunction. It is important to use bulbs that are designed for the specific voltage of the system.


Is a 120V 10000 BTU air conditioner cheaper to operate than a 240V 10000 BTU?

The way to answer this question is convert all factors to power. Voltage, current, watts, horsepower, BTUs. I will save you some time. They cost the same to operate. One thing to remember in your career, watts = watts no matter what(watt)...pkazsr You already have the answer. 10,000 btu/hr is 10,000 btu/hr, or the equivalent number of watts either way. There may be some minor difference because the higher voltage unit will pull half the amps to deliver the same power.


How much more efficient is a 2 hp 240 v 3 phase motor compared to a 120 v single phase 2 hp motor?

A 240V 3-phase motor is generally more efficient compared to a 120V single-phase motor of the same horsepower rating because it provides smoother and more consistent power delivery. The 3-phase motor also tends to have lower operating temperatures and reduced energy losses, resulting in higher efficiency and better performance overall.