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Old 05-02-2011, 06:26 PM   #1
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Default Square D

What's the difference between square d's QO and Homeline panels and breakers?
I noticed the QO breakers are about double the price, especially the arc fault ones. The 200amp main breaker panels were 40 dollars different.
I know square d panels are some of the best out there but why is there such a big difference between the two models they offer?

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Old 05-02-2011, 06:29 PM   #2
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They have pretty much the same guts as far as I know. The QO's have the trip indicator and are 3/4" as opposed to the HOM's that are 1". With the QO's you can step up to bolt on styles, plus there are wider options in panels, and breakers available in the QO line.

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Old 05-02-2011, 06:29 PM   #3
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The internal workings are the same... no doubt. The main difference is that HOM breakers are 1" breakers, and QO's are 3/4" breakers, so HOM panels are bigger. Also, the HOM breaker-to-bus connection is patterned after the old Westinghouse standard and is considered less reliable than the QO breaker-to-bus connection, which is unique to QO. Both panels use the same main breakers and other accessories. There are fewer "special" breakers available for HOM's, like shunt trips, VHO's, HM, EPD's, alarm contacts, etc., which makes QO better suited for light commercial.
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Old 05-02-2011, 06:35 PM   #4
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I just wondered because I'm in the process of moving and might be redoing my whole service. I've always installed them but just noticed the price difference.
After putting in 20 breakers with a 5$difference it starts to add up. Especially when the arc fault breakers are 15 dollars difference. For my own house I'd like to have the best but I didn't think between the square d's there would be a big difference.
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Old 05-02-2011, 07:34 PM   #5
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I have Homeline in my house and the inlaw apartment and don't lose any sleep over it.
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Old 05-02-2011, 07:42 PM   #6
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That's what I was thinking. Thanks guys
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Old 05-02-2011, 07:48 PM   #7
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I believe the biggest diff. is that the Homeline is a residential grade aluminum buss panel and the QO is their top of the line tinned copper bus panel.
I would dispute the fact that the bus design is better though. Those QO's like to hop off the buss like no other.
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Old 05-02-2011, 07:55 PM   #8
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Yeh I know what you mean. It's nice when you go into a panel to add a circuit ands half the breakers pop off
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Old 05-02-2011, 08:02 PM   #9
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Quote:
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I believe the biggest diff. is that the Homeline is a residential grade aluminum buss panel and the QO is their top of the line tinned copper bus panel.
I thought the QO bus was aluminum as well? Hmmm...

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I would dispute the fact that the bus design is better though. Those QO's like to hop off the buss like no other.
Yeah, sometimes they just won't make strong contact. I was having a problem getting a 1-pole QO to snap in tightly so I kept trying different breakers -new, old, whatever it took. Nothing seemed to worked so I had to conclude it was a defective buss tab.
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Old 05-02-2011, 08:24 PM   #10
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One thing I like about QO is where they put the neutral bar, with HOM its under the breaker terms.
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Old 05-02-2011, 10:35 PM   #11
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One thing I like about QO is where they put the neutral bar, with HOM its under the breaker terms.
That is kinda funny, because that is what I hate about the QO and love about the Siemens. I hate those neutral busses on the QO.
Different strokes for different folks
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Old 05-02-2011, 11:20 PM   #12
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Quote:
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I believe the biggest diff. is that the Homeline is a residential grade aluminum buss panel and the QO is their top of the line tinned copper bus panel.
Why do they tinned the copper bus?
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Old 05-02-2011, 11:52 PM   #13
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Quote:
Originally Posted by sbrn33 View Post
I believe the biggest diff. is that the Homeline is a residential grade aluminum buss panel and the QO is their top of the line tinned copper bus panel.
I would dispute the fact that the bus design is better though. Those QO's like to hop off the buss like no other.
i agree, i would dispute it even further since the only thing that holds the rear of the breaker stable is a little white plastic piece that dry-rots and breaks off after 5 years
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Old 05-08-2011, 06:29 PM   #14
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All Homeline panels have an aluminum bus.

Some QO panels have a copper bus. I think it is the reversable bus option which comes in copper.

Tin plating reduces oxidation.

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