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Ballast replacement - rewiring #947310
11/08/18 11:04 PM
11/08/18 11:04 PM
Joined: Nov 2018
Posts: 5
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Griddigus Offline OP
newbie
Griddigus  Offline OP
newbie
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Joined: Nov 2018
Posts: 5
Hello,

So I'm trying to replace my old magnetic ballast with a new instant start ballast to power 2 T12 eight foot tubes. The old ballast only had a blue wire and a red one, but the new one has 2 blue wires and one red wire. I'm trying to follow the guide image on the ballast itself (pictured) to rewire it, which indicates to run the blue wires through each socket and the red to both sockets on the other end. How can I run the red wire to 2 sockets if there is only one red wire coming out of the ballast? All I see on the socket are simply a hole to place the tube pin in and little holes above that which I assume is where the blue wires would go to power individual tubes on one end.

As you can probably tell, I'm very new to this so please dumb it down! I wouldn't normally attempt such a thing but I was told it would be a simple matter of connecting like-coloured cables to each other.

Thanks!!



Last edited by Griddigus; 11/09/18 12:35 AM. Reason: Pic of full ballast added in case you want to zoom in and see brand details, etc
Re: Ballast replacement - rewiring [Re: Griddigus] #947314
11/08/18 11:40 PM
11/08/18 11:40 PM
Joined: Jan 2002
Posts: 24,095
Wilmington, Delaware
Just_Bill Offline
Carpal Tunnel
Just_Bill  Offline
Carpal Tunnel

Joined: Jan 2002
Posts: 24,095
Wilmington, Delaware
Follow the directions on the new ballast. You will probably have to cut out some wires and possibly add others. It is not a straight swap!!!!

Not sure what the pics were, photobucket took a long time to give me a white screen.

Re: Ballast replacement - rewiring [Re: Griddigus] #947315
11/08/18 11:47 PM
11/08/18 11:47 PM
Joined: Dec 2014
Posts: 774
Central Pennsylvania
A
AnthraciteSparky Offline
Handyman
AnthraciteSparky  Offline
Handyman
A

Joined: Dec 2014
Posts: 774
Central Pennsylvania
Next time purchase ballast bypass tubes and run like it's 2018. Cheers.


"Me, I'm just a lawnmower, you can tell me by the way I walk"
Re: Ballast replacement - rewiring [Re: Griddigus] #947317
11/08/18 11:48 PM
11/08/18 11:48 PM
Joined: Nov 2018
Posts: 5
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Griddigus Offline OP
newbie
Griddigus  Offline OP
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Joined: Nov 2018
Posts: 5
Looking for helpful answers only please, thank you!

Re: Ballast replacement - rewiring [Re: Griddigus] #947318
11/08/18 11:52 PM
11/08/18 11:52 PM
Joined: Nov 2018
Posts: 5
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Griddigus Offline OP
newbie
Griddigus  Offline OP
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Joined: Nov 2018
Posts: 5
Picture updated, thanks @Just_Bill! Sorry its a little fuzzy, I'm taking pics of the ceiling in a very dark area and the flash was not helping!

Re: Ballast replacement - rewiring [Re: Griddigus] #947321
11/08/18 11:54 PM
11/08/18 11:54 PM
Joined: Apr 2009
Posts: 12,200
Bristol,ny
code_ceis Offline
Carpal Tunnel
code_ceis  Offline
Carpal Tunnel

Joined: Apr 2009
Posts: 12,200
Bristol,ny
The red wire goes to one end of both tubes.

YOu may have to add or splice wire.

Each blue wire goes to the other end of each tube.

Just like the picture on the ballast.

DO not forget to add a snap disconnect if it is a multi wire circuit.


"I have studied many philosophers and many cats. The wisdom of cats is infinitely superior." - Hippolyte Taine

Do not be a Monday. No one likes Mondays.

Re: Ballast replacement - rewiring [Re: code_ceis] #947324
11/09/18 12:16 AM
11/09/18 12:16 AM
Joined: Nov 2018
Posts: 5
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Griddigus Offline OP
newbie
Griddigus  Offline OP
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Joined: Nov 2018
Posts: 5
Thanks @code_ceis!! I guess I'm just confused because someone told me it would simply be a matter of connecting red to red and blue to blue on the same side of the "fixture." Maybe they didn't know that the new ballast would be a 3-wire job.

Picture explains why I put 'fixture' in quotation marks.

Have not yet used a snap connector but I'll research it.


Re: Ballast replacement - rewiring [Re: Griddigus] #947331
11/09/18 01:07 AM
11/09/18 01:07 AM
Joined: Sep 2002
Posts: 9,810
Welland Ont. Canada
jdevlin Offline
Carpal Tunnel
jdevlin  Offline
Carpal Tunnel

Joined: Sep 2002
Posts: 9,810
Welland Ont. Canada
If that is the end where the red connects then simply cut the current red and blue wires long and wire nut them to the red wire.

Re: Ballast replacement - rewiring [Re: Griddigus] #947340
11/09/18 02:49 PM
11/09/18 02:49 PM
Joined: Jan 2002
Posts: 24,095
Wilmington, Delaware
Just_Bill Offline
Carpal Tunnel
Just_Bill  Offline
Carpal Tunnel

Joined: Jan 2002
Posts: 24,095
Wilmington, Delaware
Red to red, blu to blu is correct if you are using the old magnetic style ballast.


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