CC143.0 Thermal Unit is an overload protection accessory for Schneider Electric's Square D Type CC contactors, using a melting alloy element to trip the circuit when overheating occurs. It provides Class 20 thermal protection and is specified for Type CC and Type S contactors in motor-control installations. Designed to accompany CC-series contactors, this unit protects electrical motors by interrupting the control circuit in overload conditions, helping prevent damage to wiring and equipment.
