New heat in the shop ..electric furnace help

It has a breaker on it that's a 60a duel breaker the it has about 8 ft of solid Cooper from it to my Welder plug which is 240 plug with 4 wire solid Cooper. .it runs my might and stick Welder no problem ...now come to think of it ..it just kicks my breaker in the panel box not on the furnace..I'm not to sure of the size in my panel box but I think it's around 40 duel breaker but not sure .