RC5-1/50 is an RC type surge protector designed to reduce the maximum surge peak value and to limit or even completely eliminate the high frequencies of the pre-attenuation voltage when used with an AC operated conventional contactor for a nominal control voltage between 24 ... 50 V AC 50/60Hz. , Advantages:, - The surge protector is snapped onto the top or side of the contactor or auxiliary contactor without changing the dimensions of the device., - very fast clipping: attenuation of steep fronts and therefore of high frequencies. No operating delays.