TECO produces fuse-free circuit breaker (and power-leakage circuit breaker) (50-1600AF/2.5kA-100kA), offering basic electricity protection for commercial or industrial power-distribution loops for shielding humans or properties from the harm caused by short circuit, overloading, or power leakage. Built-in devices (AUX/ALT/AUX+ALT/SHT/UVT) comply with CNS 14816-2, CNS5422, and IEC 60947-2 norms, capable of meeting various needs.