Looking to provide switching for 1-phase, 220 AC, 1/2 hp motor that doesn't include use of a contactor. I appreciate the need for precise current limit (LRA) that a branch breaker can't provide.
So, I choose to not have a contactor but instead, this, which provides the power-fail protection:
This has a relay (rated 1/2 hp) that drops out on power fail, and has external connections for additional e-stop mushroom switch. But no provision for motor protection.
Would 2 precisely-matched (ie, to the 1/4 amp), slow-blow HRC fuses be sufficient to protect this motor?
Thanks.