The Westinghouse AN22A Thermal Overload Relay is a 2-pole, panel-mounted device that provides motor overload protection in industrial motor control systems. It is used with motor starters and control panels in automated equipment, conveyors, pumps, compressors, HVAC equipment, and other factory automation applications to protect industrial motors from overload. The AN22A (Manufacturer Part Number AN22A) is a dedicated thermal overload relay for industrial use, with common replacements including Eaton C306 Thermal Overload Relay, Allen-Bradley 592, and Square D 9065.
