The General Electric THQL two pole 100 amp double breaker?http://www.azpartsmaster.com/Products/Circuit-Breaker----GE-THQL-100-Amp-DP__BKRTHQL21100.aspx
It's coded HACR.
Heating, Air Conditioning, and Refrigeration equipment.
Means it can be used with electric motors. Electric motors draw a surge of electricity to start.
The UPC code will be for THAT style of breaker, and THAT manufacturer who made it.
Same with the EAN.
It will be on the breaker.
Let's use the Connecticut General Electric THQL 21100 100amp 2-pole breaker for an example;http://www.plumbersurplus.com/Prod/Connecticut-Electric-THQL21100-100-Amp-2-Pole-General-Electric-Thick-Series-Plug-In-Circuit-Breaker/159077/Cat/1478
Here you see it's UPC is 094925005165
If you are trying to purchase, or guide someone remote from you, in buying a breaker that will fit their service panel, find out what service panel it is.
The Model Number.
This will tell you, or a representative that sells breakers, what General Electric style of breaker that is needed.
Or state it in a Comment, and I'll look it up.