The Square D AMP MAIN BREAKER PANEL 600Y/347 VAC 3Ø 4W 30 CIRCUIT NF430L4C is a circuit protection device from 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 347 VAC, 400 AMP. It is commonly in power distribution panels and industrial control circuits.
