I have a Victor automatic bandsaw that's not too swift with bar location. It has the powered roller vise and the motor coasts to a stop when the limit switch cuts power to it. I want to install a brake such that the brake will be on until the motor is powered up, in which case a solenoid will release the brake. If it's practical to do so, I may directly wire the solenoid into the motor power supply, or more likely I'll put in a relay to handle the current for the solenoid.
What I need to know is can I safely put any such relay or solenoid in line with one leg of the three phase power to the feed motor? If so, what sort of relay or solenoid will I need to look for? What sort of specs would such a thing have, is it common, and where might I find it?