Siemens HCX3B025 Thermal Magnetic 3 Pole Circuit Breaker protects 3‑phase circuits with a 25 A rating in 480 V systems, delivering a 65 kA short‑circuit interrupting capacity for reliable fault handling. This thermal‑magnetic trip unit combines overload protection with instantaneous interruption to guard downstream equipment in commercial and industrial panelboards and distribution systems. Catalog number 133237.
