The Siemens a MAIN BREAKER PANELBOARD 208Y/120V 3∅ 4W 30 CIRCUIT W/175 a MAIN is a circuit protection device from Siemens. It provides overcurrent protection, breaking the circuit automatically if current exceeds a safe level. Key specifications noted on this listing include 250 A, 175 A. It is commonly in control panels, switchgear, and machine electrical systems.
