[Al Skierkiewicz]

While there are breakers that can provide the protection you would hope for, they are also very complex and expensive. I agree with Mike, a 40 amp breaker should do the trick. However, if the two motors are linked mechanically, feeding both from the same victor may prove to be too frustrating in the end. The production standards are not tight enough to allow any two motors to run at identical speeds with the same drive. Although linked together, the difference may just damage one or more motors.