The Square D AMP MAIN BREAKER PANELBOARD 120/208 VAC 3Ø 4W NQOD44-53943-8H is a circuit protection device from Square D. 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 208 VAC, 150 AMP. It is commonly in OEM equipment and MRO replacement for electrical protection devices.
