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What to hook the two hot wires up to for 240 volt use of a quad ballast on a 400W metal halide fixture? Common and 240?

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Hooking one side to common (neutral) will give you only 120 volts. You need to hook to a double ganged breaker which will supply the needed 240 volts. Be sure to run a ground wire to the metal frame of the light from the ground bar in the service panel. Hope this helps!

Posted on Nov 09, 2010

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How to wire a cooper Quadra Mark MH 277 Volt light


Quadra mark is commercial metal halide light
It appears the 208-240 480V model is different from 120, 277 or 347V model.
You cannot connect 277Volt light to 240Volt
These are two different things.
Commercial 277V has 1 hot leg and a neutral (very similar to residential 120V which also has 1 hot leg and neutral)
http://waterheatertimer.org/images/How-to-wire-outlets-14.jpg
While residential 240V has 2 hot legs
http://waterheatertimer.org/See-inside-main-breaker-box.html

Check rating label on light and see if it shows 120V in addition to 277V
If rating plate shows 120V, then it should work.

Residential 240Volt has 2 hot legs, each Hot leg measures 120V to ground
So you can use one Hot leg from the 240Volt breaker, and use ground wire to make 120Volt circuit.
Using ground wire to complete circuit in this manner is completely out of code and not recommended by any professional electrician. But it will work.

http://waterheatertimer.org/How-to-wire-3-phase-electric.html
http://www.electriciantalk.com/f5/

Apr 16, 2013 | Electrical Supplies

1 Answer

I need a replacement ballast and capacitor for a 400W metal halide outside light, I need to know who would carry it and also a wiring diagram


most home depots will have a replacement ballast for this light, inside of box will have the correct wiring diagram, and how to wire it, if not sure as to how to wire it call an electrician

Nov 22, 2011 | Home

1 Answer

Just bought 4 new 1000W Super high output HPS bulbs. Only one of them is really bright. The others are about 80% by eye. The brightest one is nearest to the transformer stack but the others don't...


A ballast for a 1000 240 volt fixture will lose a small amount of output over time , but should nt be too noticeable . I suggest you take one of the dimmer bulbs and install it into the fixture that has the brightest bulb in it now . If the new bulb is now the brightest of all , then you know your other ballasts have lost some intensity . I have also seen on some bulbs depending on the gas inside the glass( ex. HPS or Metal Halide) which gives off the different color , will take a while on initial start up , to burn at full intensity . It is also possible that you were given used bulbs which would explain the 20 percent loss in intensity . Good luck

May 30, 2011 | Sunmaster 1000w Hps Grow Light Bulb 1000...

1 Answer

How much current taken 400w metal halide normal type


Hi,
Please check the supply voltage on your area. If you have 220 V at source then the simple formula is P = V. I cosine phi.
So the current (I) shall : I = (400/220) * 0.8 , (cos. phi, usually about 0.8) I = 1.45 Amps.
Note that, if you use ballast on this fixture, it will draw another 25% current of above current.
Is this answer clear?
Best regards, Jay

Mar 03, 2011 | RTO Construction Electrical Products,...

1 Answer

Need to hook this up to a lutron eco-t528-277-2 ballast which only has a hot,dimmed hot and neutral


If I understand correctly, you have Leviton florescent dimmer

And you want to connect dimmer to Lutron ECO-series ballast

This is the ballast with 3 wires: Hot dimmed, Neutral and Hot
02b5a79.jpg

Is this your dimmer???? Has Black, White, Red, Yellow-red, & Orange

3103a3a.jpg


Here's how to do it:
Dimmer yellow-red is not used except for 3-way switch >> cap it off with wire nut
Dimmer orange wire connects to ballast Dimmed Hot
Dimmer red wire connects to ballast Hot
Dimmer white wire connects to ballast Neutral

Those are your wires going to ballast. As you can see, you need 3 wires going to florescent fixture

Next, let's focus on Dimmer:
Dimmer green wire goes to bare ground wire
Dimmer black wire connects to Hot from breaker box (we'll test for that next)
Finally the Dimmer white wire connects to ballast Neutral as discussed above BUT is also has to connect to Neutral from breaker box

This means the Dimmer white wire is connected to 2 wires >> one wire goes to florescent fixture and the other wire comes from breaker box


So which wires come from breaker box??
It should be a black and white wire.
Let's test to find Hot and Neutral that come from breaker box.

Mark your wires.
Disconnect all the wires and separate from each other
Turn on power
Use ordinary tester
Tape tester leads to wood sticks so hands stay away from electricity
Power is on
Test each wire to bare copper wire
When tester lights up, that is Hot from breaker box ... this wire connects to Dimmer black wire
Now, test the hot wire to each of the other wires
When tester lights up, that is Neutral wire ... this wire connects to Dimmer white wire, and also connects to Ballast neutral.

Connect one wire at a time, and it will work.

Oct 04, 2010 | Leviton Decora Light Dimmer Switch

1 Answer

How many volts should be coming from the light soccet connected to a ballast for a 400watt bulb I am reading 270v but the bulb will not light


hi, a word of warning , the ignition voltage of a metal halide( grow light ) is many thousands of volts .
the first thing to try is a replacement bulb , next is replace the ignitor ( usually a small block with 3 terminals ).
a metal halide lamp can often look to be perfect when infact its internally blown .
hope this helps

Apr 28, 2010 | Hydrofarm Flco95w Grow Light System

3 Answers

How many dimmers types?


Certain dimmers can control standard incandescent lamps that use 120 volts while other dimmers can control low voltage xenon or halogen light sources that use 12 or 24 volts.

Aug 27, 2008 | Lutron Electronic Low-Voltage...

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