This Siemens SENTRON SER 300A CIRCUIT BREAKER 600V 3P W/ 300A TRIP HJD63F400 - FLAW is a circuit protection device manufactured by Siemens. It provides overcurrent protection, breaking the circuit automatically if current exceeds a safe level. Key specifications noted on this listing include 300A. It is commonly in OEM equipment and MRO replacement for electrical protection devices.
