NM Cable Clamp Appliance Enclosure

[danielk54]

Anyone know if there any standards that would prohibit the use of a two screw type NM cable clamp in an appliance enclosure (ie fireplace), with the clamping side on the interior and nut to the exterior ?


(considering no exceptions from the appliance mfg)

 

[FionaZuppa]

Anyone know if there any standards that would prohibit the use of a two screw type NM cable clamp in an appliance enclosure (ie fireplace), with the clamping side on the interior and nut to the exterior ?


(considering no exceptions from the appliance mfg)

perhaps not using a not-std-NM clamps? how would anti-short bushing work? but why install it backwards?
NEC says you must follow instructions. if the instructions show the proper way to use it you cannot flip it around.

 

[Frank DuVal]

Just for clarification, the picture is not of a NM-B clamp. The picture is an AC/MC/flex connector.

 

[FionaZuppa]

Just for clarification, the picture is not of a NM-B clamp. The picture is an AC/MC/flex connector.

That was my 1st thought, but i guess you can use anti-short bushing with NM

This place shows it as BX NM MC
https://www.primuscable.com/store/p...ors-2-Screw-Clamp-Type-Zinc-Die-Cast-3/8.aspx

I would suspect no for this type of clamp though. Std NM clamps maybe, as long as the instructions dont show only one way.

 

[Adamjamma]

Only reason I can see to use it backwards is to show it clamping the cable inside the panel...

 

[hbiss]

He's using it that way because he doesn't know how to fish NM with the connector already on it.

But if you must- https://www.menards.com/main/electr...sider-nm-connector/4714b5/p-1501914698806.htm

-Hal

 

[Adamjamma]

HBiss, do they make something similar for the PVC? HAHA

 

[electricguy61]

[h=1]ArlingtonNM94 Plastic NM-B Connector[/h]

 

[goldstar]

[h=1]ArlingtonNM94 Plastic NM-B Connector[/h]

Arlington now has new black buttons that you can use on either side of the box.

 

[infinity]

Just buy the correct connector.

 

[goldstar]

Just buy the correct connector.

That’s the one.:thumbsup:

 

[curt swartz]

That’s the one.:thumbsup:

FYI that is a Raco connector. All Arlington connectors require installation the the outside of the box/enclosure.

We have been using the Rack-A-Tiers TT500's. They are double sided so can be installed inside or outside the enclosure.

 

[goldstar]

FYI that is a Raco connector. All Arlington connectors require installation the the outside of the box/enclosure.

We have been using the Rack-A-Tiers TT500's. They are double sided so can be installed inside or outside the enclosure.

You are probably correct. I thought I saw in EC Mag. that Arlington came out with the same type connector.

 

[kwired]

You are probably correct. I thought I saw in EC Mag. that Arlington came out with the same type connector.

Not sure about the NM connector but I think they do have a AC/MC connector that can be installed from inside the box - handy at times when fishing I would think.

 

[Fmkehoe]

.

 

[jmellc]

Just for clarification, the picture is not of a NM-B clamp. The picture is an AC/MC/flex connector.

Be careful of many of the plastic type "belly buttons". They can easily snag & tear jacket.

I have sometimes used metal connectors "backward" if space dictated. I sometimes slide locknut under a panel & connector in from inside. That also allows me access to tighten screws.