Are you running multiple fiber lasers on a breaker? What size breaker are you using? Is running 2 okay for a 220 with a plug converted to 120? Or is it okay to run 2 lasers on standard 120 plug?
December 12, 2025I’m looking to purchase a laser engraver/cutter. I’m completely new to this and looking for recommendations of which to look at buying.
December 12, 2025What size circuit breaker do you guys use for a 100W MOPA fiber laser?
A1:
I have a 20amp for that leg of the shop.. run a 100w CO2, 50w fiber, exhaust fan and a couple PCs without issue..
A2:
Any circuit… your laser will probably use less juice than a large toaster oven
A3:
I put in a dedicated 20amp. I also run it through a good UPS just in case the breaker flips or we lose power
