looking for opinons for panel boxes ge square d cutler hammer murray
also what does 30/40 spaces mean.

thanks for any info.

tkrussell

Square D has two grades, Homeline and QO. Homeline is similar to GE, QO is actual good for light commercial. So GE and Sq D are very much equal.
Cutler Hammer is fine also. Murray is a low budget version of GE.

Square D QO comes only with copper bus, the Homeline is aluminum bus only.

GE makes their panels in both copper and aluminum, home centers may only carry AL bus panels, electrical supply houses carry both AL and CU

For my residential installations, I use either Square D QO or GE, mainly because of readily accessible parts, and they both have been around a long time and have not changed much at all.

Cutler Hammer makes two grades also, the familar tan color panels, which are all copper bus, and the formerly Westinghouse BR panels which are only aluminum.

All the above are good, use any panel with copper bus if the price is affordable to you.

I will not even consider Murray.

30/40 means that the panel can take 30 full size breakers, and that 10 of those full size spaces can be installed ten half size or tandem breakers, to a max of 40 breaker poles.

detroitdiesel

thanks for your input i was going with square d or ge anyway but i am still in the market to purchase a box.

the ge comes a "contractor package" with breakers the sqaure d dosent