Square D 9065SEO-9B2 Overload Relay

Square D 9065SEO9B2 is a 600 V rated, 45 A, three-pole SPDT thermal overload relay (bimetallic) in the Square D 9065 family, designed to be used with standard 9065 motor starters. The device provides NEMA‑rated overload protection by using a bi-metallic sensing element to detect excessive heat in each phase and trigger a trip that interrupts all three lines to the motor, helping prevent winding damage during extended start-up or heavy-load conditions. It supports AC or DC control circuits up to 600 V and is cataloged as a 3‑pole overload relay with a specific trip/terminal configuration that matches the 9065 series hardware. The 9065SEO9B2 variant identifies the 9B2 trip/terminal option within the family, making it a drop‑in component for compatible Square D protection schemes in industrial environments where reliable motor protection is essential. Typical applications include protection of three‑phase motors in industrial equipment where compact thermal overload protection is required, with the relay designed to be integrated into Square D Class 9065 protection schemes for coordinated protection and shutdown of motor circuits.