Subpanel: Multiple outlets on a Single 240v circuit?

[rives]

Ok, now I understand what you are talking about - I haven't found any of the plug/sockets for hoods that are NEMA standard (the electrical association that comes up with all of the common plug designs that keep us from plugging in the wrong voltage device). They seem to be proprietary designs from the fixture manufacturers. I did exactly what you are talking about - bought compatible extension cords and cut them as needed.

 

[Jhhnn]

Ok thanks.

I guess I just have to take a bunch of sunlight supply hood extension cords and cut them up to provide the female sockets for the male ends from the hoods.

Sockets w/ pigtails are cheaper-

https://www.hydroponics.net/c/409

 

[rives]

Sockets w/ pigtails are cheaper-

https://www.hydroponics.net/c/409

Can those be disassembled into small enough parts that the end will slip through a strain relief? I used the below so a raw cord end would fit through a cord grip, and then made the terminations.

http://www.ehydroponics.com/sun-15-ft-lamp-cord-16-gauge-2-point-detachable.html

 

[growshopfrank]

I'm not sure what you are talking about with a "hood flip-flop", or a hood relay.

A flip needs to go between the ballast and the two lamps that it feeds at some point. All of the installations that I've seen have the flip mounted near the ballast for ease of centralizing the controls, but it could really be anywhere in the circuit.

That relay would work fine, but the one in the following link is rated for more current and appears to be a good bit cheaper. The supplier has some of the best pricing for electrical components that I've found. http://www.automationdirect.com/adc/Shopping/Catalog/Relays_-z-_Timers/Electro-Mechanical_Relays/Power_Relays,_Open-Style,_40A_%28AD-PR40_Series%29/AD-PR40-2C-120A

Glad I could help.

If you are building a single ballast flip with the DPDT relay above take a look at square d 9991UE1 enclosure to keep everything covered and safe.
As with any open relay build take care routing wires away from moving parts.

 

[Jhhnn]

Can those be disassembled into small enough parts that the end will slip through a strain relief? I used the below so a raw cord end would fit through a cord grip, and then made the terminations.

http://www.ehydroponics.com/sun-15-ft-lamp-cord-16-gauge-2-point-detachable.html

I was referring to these-

https://www.hydroponics.net/i/249988

Should have been more specific. They're intended to be through mounted to a panel but can simply be clamped down instead.

Your cord grip method is probably superior.

 

[the gnome]

What if I had a 40a 240v Circuit running into the subpanel. How would you apply that to all the lights. Would you pigtail the single 40a circuit to 6-8 240v outlets?

I don't know how many lites your wanting to run, 6-8...?

I have 6000w, they're on a sequencial start up, 2 lites at a time
all my ballasts are running on 220v
each box runs 2 ballast BUT is capable of running 4.
every box is hooked to a 15A 220V breaker w/#12-3 wire.

the #12-3 wire from the breaker is hooked to a 220v 30A power relay that can feed 4 1000w ballasts/bulbs.
the power relay is activated by a 110v power source.
you can see in the pic a 110v supply has a digital timer
the box is plugged into the timer, when it hits the designated on time it shoots 110v to the power relay and the power relay closes sending 220v to the lamps hooked to the pigtails coming out of the box

you can run 4-1000w lamps off each box hooked to a 30A breaker.
i'm running 2, hooked to a 220V 15A breaker.

there's a site that shows you how to with parts
and assembly ect etc.
I'll look for it and try to post it.

 

[Jhhnn]

Nice work, Gnome, and smart using #12 wire & 15A breakers per 2 ballasts. Mine is similar in conceptualization if lower capacity. My cords aren't as neat but the panel also runs circulator & vent fans. I don't have much room.