Xfrmr FMC to Panel

[Alwayslearningelec]

If you have a transformer between two panels is it a code violation to connect the flex( 3' max??) to the panel? I think it's always transitioned over with a coupling to hard conduit or tubing. Thanks

 

[Strathead]

Why would you transition? Flex every time

 

[Alwayslearningelec]

Why would you transition? Flex every time

I question it because I always seem to see it transitioned over. The flex never seems to go to the panel.

I believe your only allowed 18" of flex max off xfrmr. Is that correct?

 

[augie47]

If properly supported there is no limit

 

[infinity]

As Augie stated there is no maximum length. I see guys transition purely for aesthetic reasons or if there is a limit in the spec.

 

[Alwayslearningelec]

As Augie stated there is no maximum length. I see guys transition purely for aesthetic reasons or if there is a limit in the spec.

What do you see most of the time?

 

[infinity]

What do you see most of the time?

If it's within 3' FMC only, more than that EMT with a tradition to FMC.

 

[SSDriver]

If it's within 3' FMC only, more than that EMT with a tradition to FMC.

I agree. There is no limit other than job specs. Usually I do this to limit the amount of flex for aesthetics or job specs. If its really close I see absolutely no benefit to transitioning other than an LB if needed.

 

[spa82rk]

Why are you using flex?

 

[electrofelon]

Why are you using flex?

It is very common trade practice to use FMC as the wiring method to a transformer, even though it is not required.