Description
KM的主触头闭合的同时,与SQ2并联的一对常开触头也闭合了,等到撞块离开SQ2而使SQ2I常开断开时,KM线圈也不会失电,而继续保持得电状态,用接触器自己的动作来保持其得电状态的功能称自保(或自锁),该常开触头叫自保(或自锁)触头。
BRAND NEW SQUARE D I-LINE CIRCUIT BREAKER FA34050
FAL36100 SQUARE D I-LINE CIRCUIT BREAKER *NEW IN BOX*
FAL36070 SQUARE D I-LINE CIRCUIT BREAKER *NEW IN BOX*
FAL36080 SQUARE D I-LINE CIRCUIT BREAKER *NEW IN BOX*