So, how much wire bending space is required? In the '99 NEC, it's determined by Table 373-6(a)
Only 1-1/2" is required
for the size of conductors here if they're #8 or #6, 2" if a #4 or#3. This provides that and more.
That's how it gets listed.
(BTW, these surface enclosures are basically the same design as the semi-flush version, made to fit in the space of a normal 16"OC stud bay)
As for the twin C/B's, these GE combination services are listed for their use, and I've not personally ever
had to replace one that's burned up like a Zinsco.
The problem here was not the manufacturer,but the installer that slapped in the 1" PVC without a locknut (it would have pulled the concentric KO out if there was one), and wasn't careful about how he routed his wire to the C/B that really doesn't belong in this panel.(Besides being not listed for the purpose) The GE's have a little cross tab on the bus, and I don't think
a CH has the slot to accept it. They won't stab on the bus all the way, so some guys just break off the cross-tabs, throw them in and use the deadfront to hold them in place.
Everything was probably fine until this Turkeylips came along
Maybe a pool/spa installer that "does it all"?
[This message has been edited by electure (edited 11-27-2004).]