This Square D AMP MAIN BREAKER PANELBOARD 120/240 VAC 1 PHASE 42 CIRCUIT 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 240 VAC, 150 AMP, 1 PHASE. It is commonly in panel builds and electrical system retrofits.
