Total mainframe power switch could not be activated: check whether the Master relay is damaged, whether the flowrelay tripped.
主机总电源开关不能启动:检查主令继电器是否损坏,过流继电器是否跳闸。
2
The Fairchild Model 15 relay, available in several bias range configurations to meet a variety of output requirements, offers excellent sensitivity and high flow capacity in a small volume.