hi guys. I'm installing my albright sw205 primary and secondary switches. The manual suggests installing a resistor in-line with the contactors to decrease arcing and wear on the contactors. I'm 120v dc, I don't know If I'm doing the math right but I come up with a 5watt, 250 ohm resistor. Interestingly enough, these are used items and I got the manual shipped with them ,and they were reportedly used for two years without resistors in place. . there is a small amount of arc residual on the primary side (+) and almost none on the secondary (-) side. Anyone with experience and advice on these switches? thanks
