What the is highest amp breaker I'm able to put on this QO Load center QO20-40m200 series L1?
My objective is to add a subpanel for more space, and the 125amp subpanels have a lot more space compared to 100amp subpanels, but it seems this panel's busbar might be "rated", if that's the right term, for up to 100amp breakers. There seems to be information on terminals No. 6 to 1, but how about the other breakers No. 7 to 20?
There doesn't seem to be much information from the manufacture on this panel that is original to the home build in 1969. Square D/Schneider Electric tech support mentioned they don't have any product info on this product, and their website product search for this model, doesn't seem to have anything on this specific model.
Is the qo20-40m200 series L1 most similar to the now discontinued "QO120-40M200" model? If so, is there anything in the datasheet or other document that could provide more details on single breaker safe capacity?
Additional information on this project, a few of the breakers from the main panel could be removed but we'd like to have the redundancy. A 35 amp breaker for a 24btu 240v mini split system is the catalyst for the additional space. The soon to be somewhat redundant heating for the home is six 240v 1500 watt electric force fan wall heaters that is taking up a lot of space in this smaller panel. We should saving a good amount of energy and lightening the overall load on the panel, hence wanting more spaces than less.