Low - voltage switchgear and controlgear for industrial use ; terminal marking and distinctive number for auxiliary contacts of particular contactors 工业用低压开关设备和控制设备.专用接触器的辅助接点
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Specification for low voltage switchgear and controlgear for industrial use - terminal marking and distinctive number for auxiliary contacts of particular contactors 工业用低压开关设备和控制装置规范.专用触点器辅助接点接线端标记与识别号码