I have a 5HP ( 5 real HP, 220V 30A) motor that seems to eat pressure switches. The ones I buy are 240V 50A rated but for the second year in a row the replacement switch has flaked out.
If I tap the switch I can see the contacts arc, and the motor turn for a few rotations but the switch never trips.
The pump has a working unloader and everything else is fine electrically/mechanically.
Is there something that needs adjusting/cleaning?
Short of fixing the one I have, what is a good brand of switch for this motor?
Should I get a magnetic starter?
