Schneider Electric ARO-1R Thermal Overload Relay

Schneider Electric's Square D ARO-1R Thermal Overload Relay protects AC motors up to 25 A and is rated for line voltages up to 600 V AC with control circuits up to 250 V DC, making it a compact, reliable motor-protection device for standard motor-starter assemblies. It is designed to be paired with compatible Square D/Schneider Electric contactors in control panels, interrupting motor current when an overload is detected to prevent overheating and motor damage. The ARO-1R variant identifies a 1R configuration within the overload-relay family, providing straightforward integration with existing Square D protection components. In typical industrial applications, it supports protection for motors in pumps, fans, conveyors, and other equipment where reliable overload protection is required, while maintaining compatibility with Schneider Electric's protection ecosystem for easy sourcing and replacement.