Square D By Schneider Electric 9065 SEO-8 Overload Relay

The Square D by Schneider Electric 9065SEO8 is a three-pole melting-alloy thermal overload relay rated for 45 A at up to 600 VAC, designed as a replacement for Square D Class 8536 motor starters. It occupies a NEMA size 2 form factor and supports 3‑phase protection for standard industrial motor circuits. This SEO8 unit is part of the 9065 family, which uses melting alloy thermal units (the relay body itself does not include the thermal element) and delivers inverse-time delay trip with a trip-free reset for reliable fault clearance. Within the 9065 family, SEO8 corresponds to the 45 A option, with other ratings including SEO5 (25 A), SEO12 (86 A), and SEO15 (133 A) for replacement applications in Class 8536 starers. Commonly integrated in Square D motor-control panels, the SEO8 provides coordinated motor protection when paired with the appropriate 9065 thermal units and associated mounting hardware.