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DIY 50 Amp Timer Box/ Sub Panel/ Flip Flop w/ (8) 240V outlets & (2) 120V outlets Thread Tools
Old 01-15-2010, 09:01 PM #1
CandyColas
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DIY 50 Amp Timer Box/ Sub Panel/ Flip Flop w/ (8) 240V outlets & (2) 120V outlets

So I’m posting this for a little help from the community in creating a DIY thread. I have an idea on how to make one of these but I need a little help. I’ll buy the materials and post photos of the progress but I need help in what materials I need to get and how exactly to wire the components. They sell these 50 Amp Timer boxes for $429.95 in the Sunlight Supply Catalogue which I’m sure many of you have access to but I’m sure we can build one ourselves for much less. I’m posting a picture of the box that I’m talking about below . I don’t believe that their box has a flip flop built into it but I’m sure that’s an easy upgrade. Nothing a few relays won’t fix.

Click on the picture to make it larger.
50 Amp Timer Box.jpg



So anyone interested, please contribute. I’ll be taking a trip to the Home Depot later today so I’m hoping to get some responses quickly. From the catalogue description, I’ll start with the following:

  1. (1) 50 amp range cord
  2. (1) 20 amp 240V quad breaker (I’m sure that you could substitute (2) 20 amp double breakers or (4) single breakers)
  3. (1) 10 amp 120V breaker
  4. (4) 240V duplex receptacles (this will give you 8 240V outlets for your ballasts)
  5. (1) 120V duplex receptacle (for fans, pumps etc.)
  6. (1) standard 120VAC grounded power cord (used to connect to the timer)
  7. (1) plug in timer box or heavy duty contractor Intermatic timer
After I go to the Depot, I’ll edit the list to show prices as well. The items above are the things that I know that I’ll need to get. The items that I don’t have details on that I know I’ll need to get as well are:

  1. The electrical panel box
  2. Metal outlet boxes
  3. Miscellaneous hardware
I’m sure that I’m probably missing a few things so if anyone can think of anything, please fill in.
I’m not an electrician by trade but I went to college for electronics and I’m very mechanically inclined. I have a huge respect for electricity and anyone willing to work with it should as well. People need to understand that working with line power can kill and it would best to have a professional electrician handle the installation of these devices. I’m posting this thread for informational purposes only.

So let’s begin!
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Old 01-15-2010, 09:16 PM #2
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Interesting.

I'm no electrician either but shouldn't the timer be operating a relay for the lights?. I didnt see that mentioned in your parts list.

Mebby a 40 amp relay in there?
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Old 01-15-2010, 09:22 PM #3
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Quote:
Originally Posted by GrowerGoneWild View Post
Interesting.

I'm no electrician either but shouldn't the timer be operating a relay for the lights?. I didnt see that mentioned in your parts list.

Mebby a 40 amp relay in there?
Right. That's why I mentioned relays. I didn't put it in my parts list because it's not listed in the catalogue and I don't know which relays to get. I'm hoping to get some help from guys like Madpenguin and Phillthy. There are 2 ways to build this. One way is just to build it as a timer sub panel only and the other is to build it as a flip flop sub panel. I might be using the wrong verbage but I think you guys get what I'm trying to say.

Thanks!
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Old 01-15-2010, 09:58 PM #4
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I think Kung POW!!! did a thread or few on this, nearly identical... also there is a (copied) tutorial from some online hydro store that shows similar.
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Old 01-15-2010, 10:25 PM #5
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Originally Posted by grow nerd View Post
I think Kung POW!!! did a thread or few on this, nearly identical... also there is a (copied) tutorial from some online hydro store that shows similar.
Nerd,

Kung POW!!! did a DIY on a flip flop and it's here https://www.icmag.com/ic/showthread.php?t=35561 unless you are talking about something else. All of the DIY's that I have found on ICM have been on flip flops only. They are installed in a basic metal component box. What I am trying to build is a sub panel that can also act as a flip flop. The difference is that i want to have overload protection, hence the circuit breakers. I would be using an actual sub panel box that has bus bars. All of the flip flops I've seen don't have any circuit beakers or bus bars. I really don't even need a flip flop at this time but since it would probably be an easy addition (just add a few relays), I figured why not show how to add that feature.

If you look at the picture below, you'll see the circuit breaker right on the front of the box. I haven't seen this on any of the flip flop tutorials that I have seen.



I guess I could be overcomplicating this. Maybe I could connect a flip flop directly into a breaker in my main panel but my intent was to run a wire to a standard range outlet that install in my grow room and from there, I can connect the sub panel that I've built. That way if one of the breakers trip, I don't have to go to my main panel to reset it.
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Old 01-15-2010, 10:31 PM #6
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Excellent. Looking forward to it.
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Old 01-16-2010, 01:02 AM #7
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Well no responses yet so I'm on my way to Home Depot to get what I can. Hopefully someone will jump in here soon!
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Old 01-16-2010, 06:39 AM #8
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one of the pieces of misc hardware you will need is a couple 2 pole contactors with a 110 coil, something like this ... http://www.auberins.com/index.php?ma...roducts_id=129

These will be between the 240 quad breaker & the 240outlets, your 110 trigger cable will control the contactors.
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Old 01-16-2010, 10:16 AM #9
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Quote:
Originally Posted by pimpjuice View Post
http://www.auberins.com/index.php?ma...roducts_id=129

These will be between the 240 quad breaker & the 240outlets, your 110 trigger cable will control the contactors.
You sure about that? Seems like they should be after the outlets and ballasts if they're being used for a flip.
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Old 01-16-2010, 06:11 PM #10
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I'm sorry I'm looking at the pic at the top from the catalog, no flip-flop on that one.
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