Schneider Electric's Square D CC81.5 is a three-phase thermal overload heater designed for CC-series motor controllers and rated for 480V systems. It provides overload protection for a full-load current range of 45.4 to 49.1 A, using a Class 20 thermal trip and a melting-alloy element. This plug-in unit is intended for CC frame contactors and aligns with NEMA Size 3 (and 4) configurations, making it a precise, replaceable protection option for 3-phase motors in industrial controls.
