Reliance Electric 600686-3RR 3 Pole Contactor

Reliance Electric 600686-3RR is a style-2 surge arrestor/suppressor in the Westinghouse/Baldor Reliance family, identified by part number 600686-3RR. This accessory is associated with Reliance Electric equipment and is commonly cataloged under the 600686 series as the 600686-3RR suppressor, reflecting its use across Reliance Electric, Baldor Reliance, and Westinghouse-brand control gear. Its primary role is to suppress transient spikes in coil circuits when inductive loads are switched, helping protect nearby relays, contactors, and other control components in industrial panels. The 3RR suffix designates its specific variant within the 600686 family, a designation that appears across legacy catalogs and distributor listings tied to the Reliance Electric lineage. This part is referenced in multiple supplier catalogs as a compatible accessory for legacy Reliance Electric/Baldor/Westinghouse systems, making it a common choice for refurbishment or maintenance of older equipment that uses these brands. In short, 600686-3RR is a coil-suppressor accessory identified as Style 2 within the Reliance/Westinghouse/Baldor ecosystem, designed to mitigate spikes in control circuits and support reliable operation of associated contactors and relays in industrial applications.