Routing wire in disconnect switches

[steve66]

I am trying to draw an elevation of some electric disconnect switches to see how much wall space they will need. Service entrance conduits would enter the disconnects from either the bottom or the back of the enclosures. The load side wiring needs exit the enclosure going down toward the lower level of the building.

So can the wiring come off the top lugs, and do a U-turn inside the disconnect, them exit the bottom of the disconnect? Or do I need wall space for external conduits to come out the top of the enclosure and then do a U-turn?

These will be 800A or 1200A fusible disconnects, or 1000A enclosed circuit breakers.

Thanks in advance:
Steve

 

[acrwc10]

Yes they can do a 90degree turn or more,in the disco. as long as the bending radius of the wire is maintained. It is common to see 180 degree bends in a panel or disco.

 

[iwire]

Yes they can do a 90degree turn or more,in the disco. as long as the bending radius of the wire is maintained.

Unless it is over 600 volts there are no bending radius requirements for single conductors.

There are bending radius requirements for cables.

 

[steve066]

So on a fusible disconnect, if the wiring does a 180 in the disconnect, isn't it sometimes a problem keeping the wires out of the operating mechanisim?