Schneider Electric 9065SDO5 Industrial Control Relay

Schneider Electric's 9065SDO5 Melting Alloy Overload Relay is a three‑pole protective device in the Square D 9065 family, designed to shield three‑phase motors in industrial control circuits. It supports NEMA sizes 00, 0, and 1 and is rated for up to 600 V AC with a 27 A full‑load current, making it suitable for motor protection in applications such as conveyors, pumps, fans, and other general industrial machinery. As a replacement relay for compatible 9065 contactors, the 9065SDO5 is designed to be used with the proper 9065 thermal elements, which are ordered separately to set the trip characteristics. The unit provides inverse‑time trip protection, activating when overload conditions are detected by the melting alloy thermal elements and interrupting current to prevent motor damage. Because it is part of the 9065 family, it is commonly integrated into motor control panels alongside Schneider Electric contactors and control circuits, offering a field‑replaceable protection solution for medium‑power installations. This model is specifically branded as Square D by Schneider Electric, ensuring compatibility with standard 9065 accessories and a broad ecosystem of industrial control components.