2B63UM,断路器 63A MCB B CHAR 1P+N 277VAC UL508
2B63UR,断路器 63A,MCB B CHAR 2PL 480Y/277VAC, UL1077
2B6UM,断路器 6A MCB B CHAR 1P+N 277VAC UL508
2B6UR,断路器 6A,MCB B CHAR 2PL 480Y/277VAC, UL1077
2B7,开关硬件 SHORT MNTING BARRIER BLACK TYPE 2
2B7/J,保险丝盒、保险丝夹及硬件 TERMINAL
2B8,按钮开关 UNSEALED OI
2B8/J,保险丝盒、保险丝夹及硬件 TERMINAL
