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traditionally, 3 contact starters are for a three phase motor and two contact starters are for a single phase motor.

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How do you use a one phase motor in place of a three phase motor?

To use a single/one phase motor instead of a three phase motor is possible if you have a three phase power supply as you will only need to tap one of the three phases together with neutral and an earthwire, however to use a three phase motor instead of a single phase will require the provision of three phase power supply.


How do you connect a single phase 220v motor to the breaker box?

Before the motor is connected to the distribution panel supply, overload protection should be considered. Some motors have their own internal protection and it will state "motor thermally protected" on the motor's nameplate. There is usually a red reset button on the end bell of the motor. A manual motor starter is the next option if the motor is not self protected. These types of starters have overload protection heaters that are rated for different amperages depending on what the motor's full load amperage rating is on the nameplate. Now to the question, in North America you would select to adjacent full size breakers (not mini breakers) in the distribution panel. The two pole breaker is sized on the current draw of the motor. Because of the motor's inrush current the breaker is sized at 250% of the motor's full load amps from the motor's nameplate. The wire sizing has to be 125% of the motors full load amps.


What does a three phase motor look like?

A three-phase motor typically has three sets of windings arranged 120 degrees apart around the stator core. It is larger and more robust compared to single-phase motors, with a more complex wiring configuration. The motor may have six leads coming out of it, instead of just two like in single-phase motors.


How do you connect a time clock to a 3 phase motor?

You'll need to control the motor with a large, three-pole relay, called a "contactor". If the motor is of significant size, you'll need a special kind of contactor called a motor starter (or motor protector). This is a current-protected contactor with current-based heaters sized appropriately for the motor load. They allow for the high starting currents typical of inductive motor loads and provide protection at lower currents as the motor runs. Contactors and motor starters will have a coil voltage that's typically 24VAC, 120VAC or 208VAC. That control voltage will be switched through the single pole, normally open points of the time clock. All electro-mechanical time clocks will be able to deal with most any control voltage. Some newer solid state time clocks may not be rated to 120VAC or 208VAC so you'll need to verify the control voltage of one when deciding on the other. A number of companies in the U.S. make contactors and motor starters: Cutler Hammer, Allen Bradley (Rockwell) and Square D are a few well known brands in the States. Other manufacturers (Siemens, et al) are more prevalent in other countries. Check with an industrial electrical supply or commercial equipment and motor supply like W.W. Grainger.


If all galaxies began to show blue shifts what would this change indicate about the fate of the univerese?

That would be a sign that the Universe is contracting, instead of expanding as it currently is.That would be a sign that the Universe is contracting, instead of expanding as it currently is.That would be a sign that the Universe is contracting, instead of expanding as it currently is.That would be a sign that the Universe is contracting, instead of expanding as it currently is.

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