I have a 480V>120V control transformer that keeps tripping a 6A breaker (installed on the primary) when I turn it on. I installed a temporary fast acting 6A fuse to make sure the breaker is not faulty and the fuse blows, so I know inrush current is >6A and breaker is good. If I hold the breaker in for a couple of seconds it will stay on and I read 1.5A with clam meter, so steady state current with maximum load is well below the breaker trip point. I need something to limit the Inrush current. I was thing a NTC resistor, sound good? I found this one but I'm not sure it will work. does not specify a max voltage, but mentions capacitance at 440V. datasheet says "Thermal Time Constant 194 seconds"; does that mean it will take >3min before it is effectively a short?
I've never used one of these and if someone could recommend me one that would be great. thanks
I've never used one of these and if someone could recommend me one that would be great. thanks