30 Amp GFI Breaker Wiring help

[nicke]

Hey Folks,
I'm wiring up a GFI breaker on my 30amp circuit in my shop and I just wanted to verify the wiring setup.
I'm running 10guage wire, 2 hot wires(White and black) and ground. Coming into the box, I just want to verify that:
1)I can/should leave the neutral spot (middle)on the gfi breaker open/unused.
2)The neutral pigtail from the breaker should still be connected to the neutral bar

This is how I currently have it:

Thanks
-Nick

 

[Norcal]

I take it that it's a straight 240V load? If so then no need for the load neutral but the white needs to be reidentified to a color other then white, green, or gray if it is part of a cable, if it's in conduit then the wire needs to be replaced as it's not permitted to use a white as a hot or reidentifiy it.

 

[nicke]

The wire goes to a dedicated 240v recepticle that powers my compressor. It's in the wall.

Are you saying I can't use this wire or that I can just put some black tape on this breaker end to indicate it's hot?

-Nick

 

[Norcal]

The wire goes to a dedicated 240v recepticle that powers my compressor. It's in the wall.

Are you saying I can't use this wire or that I can just put some black tape on this breaker end to indicate it's hot?

-Nick

Is it NM cable or other type of cable, or in conduit? If a cable assembly then black tape is fine. Why do you have a compressor on a GFCI? Not required for 240V loads.

 

[nicke]

10-2 NM-B
I put the GFCI on the 240V circuit because the inspector said I needed it.
Apparently, all circuits in my detached shop need to be protected, so I've got gfi outlets in the first position on all of my 120v outlet circuits as well.

-Nick

 

[pattenp]

Another question is did your compressor come with a cord and plug? If the motor is over 3HP it should be hardwired because typical NEMA 30A plugs are only rated up to 3HP. Motor loads aren't typical loads so the plug needs to have the proper HP rating because the plug is considered a disconnect.

Your inspector is wrong on the 240V unless it's a local adopted code requirement.

 

[nicke]

Another question is did your compressor come with a cord and plug? If the motor is over 3HP it should be hardwired because typical NEMA 30A plugs are only rated up to 3HP. Motor loads aren't typical loads so the plug needs to have the proper HP rating because the plug is considered a disconnect.

Your inspector is wrong on the 240V unless it's a local adopted code requirement.

2HP motor on my compressor, and yes, it has a plug.
Not sure if it's local adopted code or not. He said specifically that it was needed.

-Nick

 

[pattenp]

2HP motor on my compressor, and yes, it has a plug.
Not sure if it's local adopted code or not. He said specifically that it was needed.

-Nick

Obviously nothing wrong with using a 240V GFI breaker other than getting over the sticker shock of the price.

 

[nicke]

Obviously nothing wrong with using a 240V GFI breaker other than getting over the sticker shock of the price.

Agreed, not cheap. I wouldn't have used it if he hadn't said specifically that I needed it.
-Nick

 

[ard]

There's a thread above or below this, where the inspector was adamant about something. Member pushed back politely, asked that the inspector verify. Inspector called and said "I was wrong".

So yeah, it does happen. (Both: Inspectors can be wrong AND inspectors can admit it)

But yeah, you already have it. Just know that when it keeps tripping, you can remove it and still be 'code compliant'.

 

[nicke]

Yep, good call.
So, my wiring looks correct?

I'll get a black piece of tape on that white wire and I'm hoping I'll be good to go.
Thanks
Nick

 

[wyliesdiesels]

The only thing i can think of that the inspector may be confused about is in the 2017 code 210.8(B) requires outlets that are 150v or less to ground to be GFCI protected (aka 120/240v outlets)

However, this means straight rated 240v outlets are NOT required to be GFCI protected.

Which code cycle are you on?

I would ask inspector for code reference because he is wrong.

 

[nicke]

Thanks gents. I'll speak with the inspector and see if I can get some specifics from him. Again, thank you!

-Nick

 

[machine_punk]

I've been dealing with an electrical inspector the past couple of weeks and I agree...he wasn't super-familiar with the 240-volt circuits in the garage (especially for motors), but he was willing to look up anything I needed.

 

[EOC_Jason]

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