Electric motor wiring question ??

[fishtank]

Brought this motor new out of the bow I open the back and saw this wired .. On the diagram sticker is diffrent

[Dick284]

That tells me squat, how bout a picture of the whole motor, and one of the manufacturers nameplate.

[fishtank]

This is the diagram on the 230c ccw

[Dick284]

Put your line 1 on one screw, put your line 2 on the other screw, put the ground on the green screw.
208 or 240 volts line 1 to line 2 and watch her spin.

[fishtank]

Sorry Had problem uploading photo . It's a 2 hp motor for a exhaust in a restaurant. Ps just hook everything up and nothing happen ... ... Check both wires

[Commander B]

If your motor blew up and hence the reason you are changing it , verify you have proper voltage on each phase at the motor l1 to ground and l2 to ground both should read 120v . L1 to l2 208/230 . It may have also smoked the heater in the manual motor starter or tripped the overloads in the contactor . A fan that has a heavy duty cycle ( multiple start stops) is prone to wearing out the contacts. per your diagram note only red and black are changing position for rotation.


B.

[fishtank]

Originally Posted by Commander B

If your motor blew up and hence the reason you are changing it , verify you have proper voltage on each phase at the motor l1 to ground and l2 to ground both should read 120v . L1 to l2 208/230 . It may have also smoked the heater in the manual motor starter or tripped the overloads in the contactor . A fan that has a heavy duty cycle ( multiple start stops) is prone to wearing out the contacts. per your diagram note only red and black are changing position for rotation.


B.

there are power to the motor both line 1 and line 2, but i just check it with the volt tester, didnt have a multimeter on hand.

[Weedy1]

That motor can be wired four different ways correctly if you know it's 120 or 208/230, many other ways incorrectly. I'd be careful, you don't sound as though you know what you are doing.

[Commander B]

By default most dual rate (120/208-230) motors are internally connected for 208-230v from the factory. There is a secondary sticker on the box to this effect. The thinking is if only hooked 120 it won't run and thus be investigated further.


B.

[Commander B]

As per the OP first pic it is wired CCW at lead end and for 208/230v single phase Black {on the left hard to see} OR,WT,R on center group. don't get hung up on which spade terminal, all three in that group are common.

As noted in my earlier post only red and black are to be swapped for rotation.

B.

[6.5swedeforelk]

Originally Posted by Commander B

...verify you have proper voltage on each phase at the motor l1 to ground and l2 to ground both should read 120v ....
.

A waste of time on a 230v 1ph circuit.

What will these two measurements tell you?

[Commander B]

You are assuming both legs are switched together or even more exciting only one leg is thru the motor protection. Not saying it's the case but restaurants are all about the bandaid fix in my experience.

B.

[fishtank]

Originally Posted by Commander B

If your motor blew up and hence the reason you are changing it , verify you have proper voltage on each phase at the motor l1 to ground and l2 to ground both should read 120v . L1 to l2 208/230 . It may have also smoked the heater in the manual motor starter or tripped the overloads in the contactor . A fan that has a heavy duty cycle ( multiple start stops) is prone to wearing out the contacts. per your diagram note only red and black are changing position for rotation.


B.

yes the culprit was the switch was fried . the motor was ok .

thanks for everyones help