The Siemens AMP MAIN BREAKER PANELBOARD 208Y/120 VAC 3Ø 4W UBB4224B is a circuit protection device from Siemens. It provides overcurrent protection, breaking the circuit automatically if current exceeds a safe level. Key specifications noted on this listing include 120 VAC, 150 AMP. It is commonly in OEM equipment and MRO replacement for electrical protection devices.
