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Old 12-02-2011, 11:06 PM   #16
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My new 200AMP Homeline Square D


typically you will find the spot for the bonding screw on the top middle between the two bus bars
or, as you look above the main breaker there is a chrome bar that runs horizontile between the bus bars. in the middle there is a hole for the screw

some have the bonding screw attached to a rod which gets screwed to the bus bar

this is the usual setup. see the pic below green screw goes there


here is a pic of the other style:

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Last edited by MisterZ; 12-02-2011 at 11:10 PM.
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Old 12-02-2011, 11:54 PM   #17
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My new 200AMP Homeline Square D


The 200 amp Homeline panel avce main breaker the bonding screw will be located at top right of neutal bussbar it will have special slot for bonding screw to go in { they are self tapper so it will be little tight at first but once get thru it will lock in good } that is only avce main disconneting point but if you used this panel for subpanel purpose then you have to ditch that bonding screw.

Once you ditch it then you can get new grounding bussbar they are about 10 Euros ( get the largest one so you have plenty to install the ground conductors )

Merci,
Marc
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Old 12-03-2011, 07:17 AM   #18
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Quote:
Originally Posted by MisterZ View Post
typically you will find the spot for the bonding screw on the top middle between the two bus bars..............


here is a pic of the other style:...........[/IMG]
You make it seem as if there are only these two types of main bonding jumper.

The first image is Sq D QO. Sq D HOM has the same screw but off center. QO & HOM panels are completely different.
The other pic is Cutler Hammer.
Siemens typically uses a strap.
Murray used a long screw through the neutral bar with a tubular spacer in between.

There are many different types of bonding jumpers.
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Old 12-03-2011, 07:49 AM   #19
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My new 200AMP Homeline Square D


Quote:
Originally Posted by MisterZ View Post
typically you will find the spot for the bonding screw on the top middle between the two bus bars
or, as you look above the main breaker there is a chrome bar that runs horizontile between the bus bars. in the middle there is a hole for the screw

some have the bonding screw attached to a rod which gets screwed to the bus bar

this is the usual setup. see the pic below green screw goes there


here is a pic of the other style:
Excellent examples. I am sure you are aware, but others please note, remove the tag before installing the screw.
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Old 12-03-2011, 10:39 AM   #20
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this forum is for diy folks and there is plenty of help from pros and non pros alike. however, installing a panel if you are not experienced can be dangerous to say the least. I think petey is a real pro and does not want to see any one get hurt. Or burn their house done. it might not be a bad idea to have a licensed pro at least check out your plan and certainly have it inspected when complete. safety is foremost.in this instance the cost is second. be safe
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Old 12-04-2011, 12:44 AM   #21
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thank you Speedy Petey. i was referring only to Square D Hom boxes as the title describes. the second pic was simply to show there were other styles as well
it was not my intetion to suggest there are only one or two different scenarios for bonding screws

@pokey i agree, if there is any doubt about what to do, consult a professional. the cost of mistakes with electricity is more than the fees of an experienced electrician
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Old 12-04-2011, 06:36 AM   #22
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Got it Z. Sorry.
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Old 12-04-2011, 09:12 AM   #23
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Thanks to MisterZ, brric, and FrenchElectrician, I finally figured this out. It turns out that FrenchElectrician said it exactly right!

In a Homeline 4040, 4030. or 4020 main breaker panel, the bonding screw goes in at the top right - just to the right of the right side hot wire line lug.

There is an aluminum band which extends across the top of the panel, just above the main breaker, and it's about 1/2"-5/8" high by maybe 9-10" long. The bonding screw goes in at the far right side of that aluminum band. If you look carefully you can see the threaded hole in the can, behind it.

IMO, Square D packages a lousy or almost non-existent installation manual with this panel. No doubt they want to avoid liability on the one hand, or to maybe save printing paper on the other, but they could easily have provided a drawing of the location for the screw, and said "if required by code."

No DIY person is going to figure this out IMO or even if he guesses, he will not know for sure if he has it right. The otherwise very knowledgeable fellow at HD said it screwed into an open hole in the skinny multi-hole neutral buss, and that's a case where home centers should have better trained personnel - or give no advice at all. I guess this is where forums like this or the electrical inspector save the day! The electrical inspection is the final safety net for licensed electricians and for diy'ers alike.

Electricians would know because they've seen similar arrangements, and they know where to look!

Thank you DIY Chatroom!

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Last edited by etbrown4; 12-04-2011 at 04:21 PM.
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