The operational features and the fault modes of contactorrelay were analyzed.
分析了接触器式继电器的工作特点和失效模式。
2
Contactor can be easily retro-fitting auxiliary contact group, and appropriate combination of thermal relay to protect the load that may have been circuits.
接触器还可方便地加装辅助触头组，和适当的热继电器组合，保护可能发生过负载的电路之用。
3
Use relays, contactor, button, air switch and travel switch etc low-voltage constitute control circuit called relay contact control circuit.