E-T-A 4230-T110-K0CU-3A Circuit Breaker

The E-T-A 4230-T110-K0CU-3A is a C3-type circuit breaker from E-T-A, identified by the model 4230-T110-K0CU-3A. The 3A designation in the part number indicates a 3-amp configuration within the 4230 family, and the accompanying data references a C15 designation associated with this device. In general, circuit breakers of this kind act as protective switches that automatically interrupt current when electrical faults or overcurrent conditions occur, helping to prevent damage to wiring, components, and equipment. The C3 designation refers to a specific trip characteristic used by the device to respond to overcurrents relative to its rated current, providing a moderate response appropriate for many standard protection scenarios. Because the model code uniquely identifies the part, it supports precise cross-referencing with catalogs, procurement records, and service manuals to ensure correct substitution, stocking, and documentation within electrical panels or systems that specify E-T-A components.