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 WHAT WIRE SIZE

DO I USE?

 

 

 

 

   

 

ELECTRICAL CONNECTIONS

The task of wiring your motor is fairly simple. The wiring diagrams shown on the following pages are color-coded for easy reading. The appropriate part number is listed in each illustration, just in case you need to order the complete wiring diagram or connection label sticker for your motor. Make sure the connections are tight to prevent failure or overheating. If you do find loose connections, check for excessive vibration.

 

  GROUNDING

Without proper grounding of a motor, serious electric shock is possible. A grounding conductor should always be connected under the green grounding screw, which is located within the terminal compartment of the motor. National and local electrical codes are important, and should be adhered to when working on a motor.

 

 

WIRE SIZE

Incorrect voltage at the motor terminals can cause the motor to overheat. It's a good idea to check the electrical supply wires to confirm that they are sufficient to handle the motor load. For example, if you're using a 1-1/2HP motor at 115volts over a distance of 150 feet, use #8 wire. If the motor can be installed to operate on 230 volts, #12 wire should be sufficient for a 150 foot distance.

 

MAXIMUM DISTANCE FROM BREAKER BOX TO MOTOR FOR 115V COPPER POWER LINE
MOTOR HP

50'

100'

150'

200'

1/3

14

14

12

12

1/2

14

12

10

10

3/4

12

12

10

8

1

12

10

8

8

1-1/2

10

10

8

6

2

10

8

6

6

3

--

--

--

--

 

 

MAXIMUM DISTANCE FROM BREAKER BOX TO MOTOR FOR 230V COPPER POWER LINE
MOTOR HP

50'

100'

150'

200'

1/3

14

14

14

14

1/2

14

14

14

14

3/4

14

14

14

14

1

14

14

14

12

1-1/2

14

14

12

12

2

14

14

12

10

3

12

12

10

10

 

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