/diy/ - Do It Yourself

>>2034495
Look it up in NEC 310, you didn’t say if your 60A run is going to be copper or alum. If copper, then a 6ga wire can handle 65A. It needs to be 4 wire.

Also, if your panel is/isn’t the first connection (like if you have an outside disconnect) you need to establish if the neutral is floating or if bonded to ground. In either case the new sub needs floating neutral and it’s own wire (hence the 4 wire)

Also, your humidifier is sounding like it’s going to be running a lot, so the NEC 80% rule applies. You can’t exceed 80% of that 12g wires rating of 20A, so if the humidifier is pulling more than 16A/~2,000W you should upsize to 10-3 or 10-4 (if the appliance needs separate). Dedicated equipment also needs simplex recepticles not duplex

>>2034586
>Look it up in NEC 310, you didn’t say if your 60A run is going to be copper or alum. If copper, then a 6ga wire can handle 65A. It needs to be 4 wire.
Not if it is NM-B.

>>2034586
Also, he can use a 10 AWG for ground back to the main panel.

>>2034586
I'll be doing copper everything.

Bonded neutral, pic related. Main panel is first thing after meter.

At 240v the humidifier can be run at 12amps or 16amps, so I should be in the 80% of 20A even jumpered to 16amps. 240v/12amp settings are a little overkill for my sq.ft. actually running at 16amps is like 4000sq.ft. regardless I'll double check the wattage isn't over 2000 and otherwise not plan to upsize the 12/4 there. Also the humidifier unit will be hard wired in a switched junction box no receptacle.

What are /diy/ thoughts on buying components on amazon vs. local big box, e.g. subpanel and breakers?

How about flexible conduit yeah or nay? I'll have to borrow a bender if I'm doing hard conduit for sub-panel circuits.

>>2034792
do they not make 6/4? Is it just a less expensive option?

>>2034785
This I don't get at all. Do I not want NM-B between panel and sub-panel?

>>2034785
6-6-6 SE(R) Would probably be cheaper

Are you just looking to increase the number of available circuits or what exactly? And what's the whole panel/panel area look like
Also your grounds are triple tapped, so I'm going to assume your neutrals on the other side of the panel are double tapped as well. You should install some additional grounding bars when you add the sub panel.

>>2034799
Just go to an electrical wholesaler supply shop if you have them in your area and you most likely do.

>>2034804
>do they not make 6/4?
6/3 cable is actually 4 wires; white, black, red, and a bare ground, all of them wrapped in an outer jacket.

In any case, you can get 6 awg THHN wire by the foot at big box stores for less than a dollar a foot, this shouldn't be too expensive--especially with the subpanel being right next to the main panel as OP says

>>2035205
>Are you just looking to increase the number of available circuits or what exactly?

It started with I'm going to add a breaker for the humidifier, but lead to some seriously fucked up daisy chain /diy/ from the previous owner. For example he slapped a 30a breaker on a 15a bathroom circuit because having the entire garage and half the basement on a 15a was popping the breaker. Here's a little of the handiwork I'm unfucking (pic related). So I wind up needing new circuits anyway, it's an opportunity to isolate the garage, add circuits to basement and unfuck the two massive random chains hes got going on.

>>2035240
Ah, yeah. I get confused when I'm planning and forget shit like 10/2 doesn't count the ground. That's why I'm trying to double check all this shit. Thanks.

Also not trying to save money on the materials, I want it to be obvious and easy, I'm saving on paying an electrician so a few extra burgers for copper I don't mind.

Thanks everybody btw.

>>2035517
and pic...