Contactor coil snubber. These noise spikes mayinterfere with associated equipment causing erratic operation and may alsoaccelerate relay contact wear. Applied across an inductive load, the R-C snubber suppresses the electrical noise spikes to electronics and extends contact life on mechanical relays. Can you use cheaper components and make the snubber circuit myself? Colin 02-17-2014, 10:13 PM #4 Al_The_Man Community Obviously, when you open the electric circuit acting on the contactor, the current waveform likely won't be zero-crossing, thus resulting in an overvoltage that may affect the TRIACs in the hybrid motor starter. To be on the safe side, I guess it is best to fit them. Jan 16, 2026 · Stop destroying contactors with standard diodes. I read somewhere,that usually the values 470OHMS and 0. Compare Diode, Zener, and RC Snubber techniques to balance PLC protection and extend contact life by 5x. How do I calculate the proper size resistor and capacitor for a snubber circuit? Sep 17, 2019 · Right now it is controlled via a contactor with 220-240 AC coil input voltage with help of NO and NC switches. Or is there any readily available snubber component in the market Nov 11, 2014 · Author Topic: Snubber Capacitor for a AC coil - contactor (Read 6159 times) 0 Members and 1 Guest are viewing this topic. Mar 15, 2007 · snubbers for contactors Hello, I am switching a contactor of 230V~ Coil with a relay. gygg mzrazd jjwtx mmw mntlmdc lzzke rgdyp lfktdwe oax ftyw