Device and Box Fill...

[1793]

I have a small definite purpose contactor I need to put into an enclosure. The size is 3.5 L x 3 W x 2.5 H. I've looked over 314 but not sure how to configure for a device like this. If someone would be so kind as to point me in the right direction I would appreciate it.

As always, thanks.

 

[Dennis Alwon]

Doesn't your supplier sell the enclosure with the contactor

 

[big john]

Definite-purpose contactors are UL Recognized and intended as replacement components only, so I don't think you'll find an enclosure for one.

That said, I think 312.6 would be applicable to any equipment installed in an enclosure.

 

[Cow]

I've never done calculations to size a box for a single contactor. Hold it in your hand and determine how easily you want your wires to go into the terminals while leaving enough room for your hands, then buy that size box.

 

[1793]

Doesn't your supplier sell the enclosure with the contactor

I had to purchase this contactor from an HVAC supplier. It is a DPST with a 24v coil.

 

[JES2727]

See 314.24 for guidance on sizing boxes with enclosed devices.
Also see 314.16(B)(1) & (4) for guidance on calculating the volume of conductors & devices

 

[iwire]

I had to purchase this contactor from an HVAC supplier. It is a DPST with a 24v coil.

Unless you are using it for a direct replacement of an existing contactor of the same brand and model number it can be considered a violation as they are not UL listed.

YMMV.

 

[1793]

See 314.24 for guidance on sizing boxes with enclosed devices.
Also see 314.16(B)(1) & (4) for guidance on calculating the volume of conductors & devices

Thanks, that what I was looking for.

Unless you are using it for a direct replacement of an existing contactor of the same brand and model number it can be considered a violation as they are not UL listed.

YMMV.

Looks like I had better come up with another way to accomplish my task. :weeping:

 

[don_resqcapt19]

Unless you are using it for a direct replacement of an existing contactor of the same brand and model number it can be considered a violation as they are not UL listed.

YMMV.

What code section requires that a contactor be a listed device?

 

[iwire]

What code section requires that a contactor be a listed device?

Did you not see the word 'could'?

Some areas require all equipment to be listed.