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3 phase 2 speed brake motor diagram I need diagram to switch wires from 440/480 to 230/220 3phase all wire number are marked. I can not read 3 of them. 7&4-? 6&9-? 8&5-? this motor is back gauge for a 1808 cininnati shear', built 1956 this motor runs back gauge, forward and backwards in 2 speeds forward and 1 speed backwards. thanks, if any help is available.

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YOU CAN CALL THE MAKER OF THE MOTOR

Posted on Jan 12, 2010

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How to Reverse the Rotation of Single Phase Capacitor-Start Electric Motors


Reversing the rotation of electric motors can be done easily with 3-phase motors. This can be easily achieved by swapping the connection of any two motor leads. But 3-phase motors are usually found and used for industrial purposes. The ones found and used in our homes, from water pumps to electric fans, are single phase capacitor-start type motors. Unlike 3-phase motors, reversing the rotation of single phase electric motors is no easy task. Swapping any two motor leads will not result in the reversal of the motor rotation. Analysis of the motor windings and connections are necessary before any modification can be done to achieve the desired result. Let's take a 3-speed single phase capacitor-start electric motor with electrical diagram shown below as an example. Make sure the motor is disconnected from the power supply before attempting to follow this tip. This tip is intended only for individuals with electrical knowledge, necessary tools, and understand the risks associated with handling electrical equipments and devices.

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The first step in the process is determining the start winding which is connected to the line (AC white) and to one side of the start capacitor. To accurately determine the start winding, disconnect all motor leads from the start capacitor and the speed switch for multi-speed motors and then setting your ohmmeter to the lowest scale (R x 1), measure the resistances between the AC white line and each of the motor leads connecting to the start capacitor. The one with the least resistance is the starting winding lead.

Once the start winding lead going to the capacitor is determined, reconnect the capacitor then connect the black AC line to the found start winding lead (marked X). Connect the white AC line to L of speed switch, the motor lead formerly connected to AC white to 3, red to 2, and white to 1 as shown below. Leave the green/yellow ground wire connection as is.

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Below are the wiring modifications for 2-speed and single speed single phase capacitor-start electric motors.

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on Jan 11, 2011 | Dryers

1 Answer

2 speed switch wiring dieagram


The motor will have wiring diagram and voltage on nameplate.
You can re-post question with information that shows on nameplate for more exact information, or keep reading below:
If motor is rated for 240Volts, then it will not work with 120V.
If motor is rated for both 120V and 240V, then either Low voltage or high voltage will work, and one wire will be common, and 1 wire will for 120 and other wire for 240.
If motor is rated 120Volt two speed, then one wire will be neutral, and 1 wire low speed, and other wire high speed. You can connect your wire to either low of high, and cap other wire.
If motor is 240volt two speed, then one wire will be common, and 1 wire low speed, and other wire high speed.
If motor is rated 3-phase, then all three wires are connected to the voltage shown on nameplate.
If motor is rated 3-phase two speed, you may need electrician to wire the motor correctly.
http://waterheatertimer.org/pdf/AO-Smith-motor-wiring.pdf

Jun 08, 2012 | Westinghouse Electric Westinghouse...

1 Answer

I have a new water heater, and the hook up terminals are labled 1-2-3 are they hooked the same as in the panel 1-2-3 ?


No. You have to find out if you have 3 phase or single phase power. If this is a new unit you will find a wiring diagram inside the front cover. 3 phase power has 3 "hot" wires. Single phase has 2 "hot" wires. There is a big difference when you hook it up wrong. I don't know if this is a new installation or if you are replacing an old one. The terminals are numbered for 3 phase. If you look in your breaker box, 3 phase 208 will haven a breaker with 3 spaces hooked together by one bar. Single phase will have two spaces hooked together by a bar. So if the breaker kicks out it will flip all 3 space on 3 phase or 2 spaces on single phase. If you already have wires to the location of the booster heater, you may have to use single phase if that is all that is at that location. If you have single phase power you will have to look at the wiring diagram and you will see the terminal block represented for both single and 3 phase. Normally running from the terminal block will be six wires marked 1 through 6. The wireing diagram will say something like "for single phase put 1,3,5 on terminal 1 and 2,4,6 on terminal 3. Leave terminal 2 out all together. Of course at this point your 2 hot wires will go to terminal 1 and 3. There are other considerations as well. With 3 phase the circuit wires will be smaller gauge and may not carry the current you need for single phase. This is a booster heater. You need to hook up your hot water line to go into the heater and the boosted hot water to your appliance. It will not work to heat your water for other purposes. It is meant to take 140 degree water and boost it to 190 degrees. Good luck, hope this helps

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1 Answer

Need to rewire from 480 to 240 need coolant pump diagram for colchester # 348337 3 phase motor


Assuming that the motor has 9 leads and the wire numbers are still on the wires, for 240 volt 3 phase connections:

Connect T1, T6, and T7 together with L1 (A phase)

Connect T2, T4, and T8 together with L2 (B phase)

Connect T3, T5, and T9 together with L3 (C phase)

If you're not sure which of the incoming wires from the supply are L1, L2, and L3, just pick one. If the rotation is wrong just swap any 2 (TWO) phase wires.

Jun 22, 2010 | Measuring Tools & Sensors

2 Answers

Wiring diagram for a 3 way ceiling pull switch.


These fans are manufactured by a number of overseas companies and sold exclusively by Home Depot. They do not have a standard color code for the fan switch. What you can do is turn off the power, keep the white neutral connected. Then using the black power wire fro the ceiling, take one of the switch wires and connect to that black, turn the power on and observe the speed .. low mark it 1, medium mark it 2, high mark it 3. Repeat untill you have identified all the speed wires. Then connect these wires to the 1,2,3, terminations of your new switch
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May 29, 2010 | Hampton Bay 24750 Huntington III Ceiling...

1 Answer

I need awing diagram for the 5 speed switch.


you have a side that says B in the center of 2 posts one post reads + one reads - . black to battery is negative red to battery is positive.
post marked 1 is Red post marked 2 is blue and post marked 3 is yellow. Single post on other end is Black to motor. That's the way it was on mine ant I have the t42 motorguide powerplus. Hope this helps.

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1 Answer

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I do not read anywhere that you have a 230V DPDT switch which you will need in order to select the high or low speed. You will have 6 terminalas on the switch. Line connections usually go to the middle set. Put put sides of one pole to the common terminal and put one of the other posts to the hi and the other to the low terminal. I prefer to use am on-off-on switch so the switch in the middle turns off the pump. Flip it one way for hi and the other for low. If you post your stock number from the two-speed motor I could give you a more accurate diagram if you need it. Generally, 1 is common, 2 hi and 3/4 low.

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How to connect the 3 phase power supply to a 3 phase synchronous motor with control panel


I assume you have 3 phase power where this is going? The panel has 3 legs, 2 are 110 volt and one is 208 volt, you will need a tester to find out which is which if it is not marked, the motor should have a map on it for the wires to attach to, they go the same way, two, 110 and one, 208, I hope this helps, There will be one wire for a ground or a solid wire separate from the unit.

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1 Answer

Cutler hammer a10ano series a-1 contactor


There should be 2 contactors for forward and reverse. you have to wire them so that the power coming in will switch 2 opposite phases to reverse.

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