The Siemens AMP MAIN BREAKER PANELBOARD 480Y/277 VAC 3Ø TYPE 3R 30 CIRCUIT 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, 250 AMP. It is commonly in power distribution panels and industrial control circuits.
