RELIANCE 64427-6R Thermal Overload Relay

RELIANCE 64427-6R is a legacy Reliance Electric thermal overload relay used to protect industrial motors within control circuits. Catalogs and distributor listings describe it as a relay, overload, associated with Baldor Reliance and the broader Allen‑Bradley/Rockwell lineage; some references label it a solid-state overload/relay within the 64427 family. Rated for up to 600 VAC in non-compensated configurations, the 64427-6R is designed to sense overload conditions in AC motor circuits and trigger a protective action when current or heat limits are exceeded, typically when paired with a contactor or drive assembly. Common applications include conveyors, pumps, fans, and other heavy equipment where legacy Reliance Electric components are used, especially in retrofit projects or spare-part inventories that require exact 64427 cross-references.