1B20UM,断路器 20A MCB B Char 1pl 277VAC UL508
1B20UR,断路器 20A,MCB B CHAR 1 PL, 277VAC, UL1077
1B21AN,IC CONV V TO I HYBRID 38-DIP
1B22AN,IC VOLTAGE CONVERTER PROG DIP
1B22AN.,
1B248-12-12,
1B248-4-4,
1B248-6-6,
