Allen-Bradley W63 Heater Overload Relay is a thermal overload protection device used with compatible Allen-Bradley contactors to safeguard motor circuits from overcurrent. As part of industrial motor control, the relay detects excess heat generated by motor current and trips the circuit to prevent damage. Manufactured by Allen-Bradley (Rockwell Automation) and available in the W63 family, this device is designed to be integrated into a complete starter or control panel to provide reliable overload protection.
