I am trying to operate a 24VDC coil with an inrush of approximately 30A, and a holding current of only 250mA. To avoid needing a 750W supply for a holding current of less than an amp, I attempted to use a 4 ohm thermistor to suppress the inrush current down to about 5A and allow me to use a much smaller 250W supply.
Unfortunately I'm thinking this might've been flawed logic. I was thinking the trick was to simply suppress the inrush current, but now I'm thinking maybe that inrush current is critical to closing the contactor. I tried testing the circuit as designed, but the contactor is not closing. The thermistor worked in the sense that my 10A breaker is not tripping, but I can not operate the coil. My assumption is it is not getting enough initial power to close.
My question is, are coil inrush currents something that can be suppressed? If so, I'm assuming there is a more correct way to do so as my idea does not seem to be functional.