The Siemens AMP MAIN BREAKER PANELBOARD 480/277 VAC 3Ø 4W S2E42JX300DBS is a circuit protection device from Siemens. It serves as the protective device in an electrical circuit, stopping current flow when a fault is detected. Key specifications noted on this listing include 277 VAC, 300 AMP. It is commonly in facilities and machinery requiring reliable overcurrent protection.
