Circuit Breakers in Low Voltage Chemistry Projects?
Circuit breakers are extremely poor choices for "Protecting Devices".  They are properly used to protect from overloading wiring, which causes fires.

You would be much better off to use an ultra fast blow fuse, if you really want to protect a solid state device.  Of course, then there is the cost of fuse replacement if it clears, but semiconductor rated fuses do work for protecting rectifiers/transistors/SCR's, et al.