Only ONCE did I have to build such a circuit.
The AHJ determined that such a blower is NOT a life essential device.
So the OL heaters were left in place.
-----
Each situation is going to be a Life Safety issue. It's outside the NEC.
----
WRT smaller ( 1hp or less ) thermal overloads lead directly to integral drop-out from the load.
Not uncommonly, they reset, automatically, when the temp drops they re-trigger. They DO NOT interact with any contactor what so ever.
These beasties interrupt line current -- and then restore it.
These motors are so small that contactors are uncommon.
