This Siemens AMP MAIN BREAKER PANELBOARD 240/120 VAC 3∅ 4W 39 CIRCUIT is a circuit protection device manufactured by Siemens. It shields downstream wiring and equipment from damage by interrupting the circuit during a fault or overload. Key specifications noted on this listing include 120 VAC, 800 AMP. It is commonly in panel builds and electrical system retrofits.
