Electrical Fittings - 90 versus straight, etc


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Old 03-26-14, 03:36 PM
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Electrical Fittings - 90 versus straight, etc

I'm wiring a gen panel to my main panel and just looking at various fittings,
knockouts on the main panel, pull/splice panel etc.

Just a couple of musings/thoughts

When do you use a 3/8-1/2 Duplex Connector as opposed to just running to 2 1/2 knockouts. This question applies to both a panel or a gang box. Is it preferred to run a single cable to a knockout - and when space or lack of KO becomes an issue, you use the duplex ?


Flex Squeeze Connectors Versus Insulated Squeeze Connectors. They both are the same funtionally. Is the insulated just a ~better~ connector as it has a smoother ID ?

When do you choose a 90 degree connector over a straight connector.

In my application, I'm putting the splice panel RIGHT next to the gen transfer panel. I plan to use the 1" KO on the bottom on both panels. and go out from the bottom and come up. I think the bend radius is the same. Either I have a bend on the 90 or I have a long sweeping bend as it makes a U if I use straight connectors on the bottom of the panel
 
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Old 03-26-14, 03:57 PM
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When do you use a 3/8-1/2 Duplex Connector as opposed to just running to 2 1/2 knockouts. This question applies to both a panel or a gang box. Is it preferred to run a single cable to a knockout - and when space or lack of KO becomes an issue, you use the duplex?
When I'm using Type AC or Type MC and space/KOs are tight relative to the total number of cables.

Flex Squeeze Connectors Versus Insulated Squeeze Connectors. They both are the same funtionally. Is the insulated just a ~better~ connector as it has a smoother ID ?
Can you link to an example of each? Not all mfrs and distributors label their products the same.

When do you choose a 90 degree connector over a straight connector.
When I need the cable to run along the side of the enclosure and I have enough room to allow that to happen.

In my application, I'm putting the splice panel RIGHT next to the gen transfer panel. I plan to use the 1" KO on the bottom on both panels. and go out from the bottom and come up. I think the bend radius is the same. Either I have a bend on the 90 or I have a long sweeping bend as it makes a U if I use straight connectors on the bottom of the panel.
If they're next to each other. why aren't you connecting them with nipples?
 

Last edited by Nashkat1; 03-26-14 at 04:29 PM.
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Old 03-26-14, 04:14 PM
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TBD on the nipples with the panels back to back. I've yet to lay it all out but I think if I use the gen switch I have, it might be constricted on the KO on the side
 
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Old 03-26-14, 04:56 PM
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Here is a insulated connector for example



Non Insulated

 
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Old 03-26-14, 05:14 PM
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I don't use either of those types unless nobody in town has steel connectors, so I don't have an opinion on them. I usually use snap-in saddle-bite connectors. Too, too easy to work with and almost never break.
 
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Old 03-26-14, 06:14 PM
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Those snap-ins.....I've asked 4-6 sparks over the years when working on new spaces for my company, and only 1 of them if I recall says that all he uses. The rest say locknuts only, the snaps will find a way to work their way out.
 
 

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