2B4UR,断路器 4A,MCB B CHAR 2PL 480Y/277VAC, UL1077
2B5,开关硬件 SHORT MNTING BARRIER GRAY TYPE 2
2B50UM,断路器 50A MCB B CHAR 1P+N 277VAC UL508
2B50UR,断路器 50A,MCB B CHAR 2PL 480Y/277VAC, UL1077
2B5UM,断路器 5A MCB B CHAR 277VAC UL508
2B5UR,断路器 5A,MCB B CHAR 2PL 480Y/277VAC, UL1077
2B6/J,保险丝盒、保险丝夹及硬件 QUICK CONNECT
2B60UM,断路器 60A MCB B Char 1P+N 277VAC UL508
