The Siemens AMP MAIN BREAKER PANELBOARD INTERIOR 480Y/277 VAC 3 PHASE is a circuit protection device from Siemens. It safeguards wiring and connected equipment by opening or isolating the circuit when current exceeds its rated threshold. Key specifications noted on this listing include 277 VAC, 250 AMP, 3 PHASE. It is commonly in power distribution panels and industrial control circuits.
