• SIEMENS US2:SW4040B1200 SW4040B1200 Main Breaker Load Center, Convertible, 1 Phase, 3 Wire, 120/240 Volt AC, 200A, 22 kA Interrupting Rating, 40-Circuit, NEMA 3R, 38" Height, With Aluminum Bus

SIEMENS US2:SW4040B1200 SW4040B1200 Main Breaker Load Center, Convertible, 1 Phase, 3 Wire, 120/240 Volt AC, 200A, 22 kA Interrupting Rating, 40-Circuit, NEMA 3R, 38" Height, With Aluminum Bus