Square D Thermal Overload Relay 9065 SEO-12

The Square D 9065 SEO-12 is a solid-state thermal overload relay designed for motor protection in industrial applications. This panel-mount device provides reliable overload and phase loss protection for three-phase motors, helping to prevent damage from excessive current or imbalances. It features adjustable current settings from 3 to 12 amps, making it suitable for NEMA size 00 to 0 starters. Key benefits include solid-state reliability over traditional bimetallic relays, offering faster response times, reduced maintenance, and immunity to ambient temperature variations. It supports manual or automatic reset modes and includes a trip indicator for easy diagnostics. Commonly used in pump controls, conveyors, and HVAC systems, this relay enhances motor longevity and system safety. Drawbacks may include higher initial cost compared to basic thermal units and the need for compatible contactors. Compared to similar products like Allen-Bradley or Siemens relays, the Square D model stands out for its robust construction and integration with Square D motor control centers. The unit appears brand new based on provided images, with no visible wear, and is shown installed in a control panel assembly. Additional details from images include copper bus bars, red reset handle, and association with a Teel control panel (460V, 75A, three-phase duplex), suggesting it may be part of a larger pump control system. Serial or specific ratings not clearly visible in images. Estimated market price for new units ranges from $150-250 USD based on recent online listings from suppliers like eBay and industrial surplus sites.