1B4UM,断路器 4A MCB B Char 1 pl 277V UL 508
1B4UR,断路器 4A,MCB B CHAR 1 PL, 277VAC, UL1077
1B5/J,CONN TERM BLK 90DEG BARRIER
1B50UM,断路器 50A MCB B Char 1pl 277VAC UL508
1B50UR,断路器 50A,MCB B CHAR 1 PL, 277VAC, UL1077
1B51AN,IC THERMCPL SGNL COND ISOL 38DIP
1B51BN,IC THERMCPL SGNL COND ISOL 38DIP
1B5UM,断路器 5A MCB B Char 1 pl UL508
