3C4UM,断路器 4A MCB CCHAR 3 PL 480Y/277VAC UL508
3C4UR,断路器 4A,MCB C CHAR 3PL 480Y/277VAC, UL1077
3C50UL,断路器 50A, C CHAR, 3POLE 240VAC,UL489
3C50UM,断路器 50A MCB CCHAR 3 PL 480Y/277VAC UL508
3C50UR,断路器 50A,MCB C CHAR 3PL 480Y/277VAC, UL1077
3C5UL,断路器 5A, C CHAR, 3POLE 480Y/277VAC,UL489
3C5UM,断路器 5A MCB CCHAR 3 PL 480Y/277VAC UL508
3C5UR,断路器 5A,MCB C CHAR 3PL 480Y/277VAC, UL1077
