Electrical Fittings - 90 versus straight, etc

[mobiledynamics]

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

 

[kd3pc]

why not just ****** the panels together?

sweeps are always preferred over short/tight 90's, especially if you are pulling wire. Always less than "4" 90 degree connectors - if pulling long runs, way less.

Some AHJs require one wire per connector, others may allow two or three depending on the wire size/type and the size of the connector

 

[Mustang51js]

Only time I use double connectors is with bx,mc wire, otherwise I use plastic rx connectors and put two wires for one connector.