? on popping circut breaker.

so yea you probably reaching your limit.

 

That is a Double Pole double throw breaker. Yes each leg is single phase.

Cutler-Hammer at Lowe's: 100 Amp Double Pole Type BR Circuit Breaker and is 220v.

 

how could it be double when it even says single in the title. The breaker you are showing is 220 and yes that does attach to both poles of the tree (thus making it 220). We were not even arguing that two breakers in one was a 110. Orginal argument was that you can expand your box with the breakers that I shown and other person stated it wouldn't work on the count of it being 220. So I don't even know where this is coming from. Lost point.

 

not to be offensive but read this and get your throws and poles corrected http://www.kpsec.freeuk.com/components/switch.htm
http://www.lowes.com/lowes/lkn?action=productDetail&productId=60351-82364-BR2100&lpage=none this breaker is a double pole single throw 220.

 

This advice should be ignored. Swapping to a 40 amp breaker on wire originally run for a 15 or 20A circuit is inviting disaster.

Lighting the tree only when the halides are off, is probably the most pain-free solution.

Beamerhack, you are offering very dangerous advice to those who might actually listen.