This Square D AMP CIRCUIT BREAKER 480Y/277 VAC 3 POLE EDB34040 is a circuit protection device manufactured by Square D. 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, 40 AMP, 3 POLE. It is commonly in power distribution panels and industrial control circuits.
