Switch leg/switch wiring

[mstrlucky74]

Wiring question. Looking for most practical way this would be wired using MC. So if the feed was brought to the switch what would be most practical? single pole switch 120v.

1. Run (3) separate 12/2 to each light fixture from switch.
2. Run 12/2 from up each light fixture to a common j-box and run MC cable from switch to the common j-box. Don't think that would make sense as you would need to run multiple MC cables from switch or I guess a 12/6 but then box fill might be an issue.

Thanks.

 

[infinity]

Feed to switch, 12/2 switch leg to each fixture.

 

[Jgentles1]

Wiring question. Looking for most practical way this would be wired using MC. So if the feed was brought to the switch what would be most practical? single pole switch 120v.

1. Run (3) separate 12/2 to each light fixture from switch.
2. Run 12/2 from up each light fixture to a common j-box and run MC cable from switch to the common j-box. Don't think that would make sense as you would need to run multiple MC cables from switch or I guess a 12/6 but then box fill might be an issue.

Thanks.

12/2 feed to switch box. 1- 12/2 from switch box to appropriate fixture. That puts 4- 12/2 mc cable at switch use 3 gang metal box, should be u der on fill.

 

[kwired]

Wiring question. Looking for most practical way this would be wired using MC. So if the feed was brought to the switch what would be most practical? single pole switch 120v.

1. Run (3) separate 12/2 to each light fixture from switch.
2. Run 12/2 from up each light fixture to a common j-box and run MC cable from switch to the common j-box. Don't think that would make sense as you would need to run multiple MC cables from switch or I guess a 12/6 but then box fill might be an issue.

Thanks.

Different situations may make one change their mind. Often simplest to run three 12-2 from the switch location to each luminaire.

If all on one circuit (whether two wire or multiwire circuit) one should only need 12-4 if running a single cable with all three loads and not a 12-6, which will make a difference with conductor fill in boxes.

 

[cdslotz]

How many time you going to ask the same question?

 

[Chamuit]

It would also depend on the terminations at each light fixture. Are they rated for feed thru?

 

[mstrlucky74]

Different situations may make one change their mind. Often simplest to run three 12-2 from the switch location to each luminaire.

If all on one circuit (whether two wire or multiwire circuit) one should only need 12-4 if running a single cable with all three loads and not a 12-6, which will make a difference with conductor fill in boxes.

Thanks. So if one circuit a.12/4 would give you the 3 switch legs and the hot??

Sent from my SM-N960U using Tapatalk

 

[kwired]

Thanks. So if one circuit a.12/4 would give you the 3 switch legs and the hot??

Sent from my SM-N960U using Tapatalk

I thought you brought power to switch first, if so then it would be three switched lines and the neutral.

If not bringing power to switch box first, you could need more conductors depending on if multiple circuits, multiwire circuit, plus whether you must have a grounded conductor at the switch to comply with 404.2(C).

 

[LarryFine]

Often simplest to run three 12-2 from the switch location to each luminaire.

Why would each fixture require three cables???

 

[Chamuit]

Power to j-box in lid. Drop switch leg to switch location. Send one run to each fixture. Done.

 

[MAC702]

Often simplest to run three 12-2 from the switch location to each luminaire.

Why would each fixture require three cables???

Put a colon between the "12-2" and the rest of the sentence:

Run three 12-2: [one] from the switch location to each luminaire.

 

[kwired]

Why would each fixture require three cables???

Read what I meant and not what I said

Put a colon between the "12-2" and the rest of the sentence:

Run three 12-2: [one] from the switch location to each luminaire.

 

[LarryFine]

"I see" said the blind man.

I have the same problem with my computer: I's always doing what I tell it to do instead of doing what I want it to do.