产品有NH系列、FN系列的以及DB系列的冰箱压缩机，各种规格的压缩机起动继电器、保护器。
The products include NH series, FN series and DB series refrigeration compressor, all kinds of compressor starter relay and overload, and so on.
流量指示器用于声音报警，灯光报警，当流量发生时启动电机、泵等继电器或起动器开关。
Waterflow indicator used to sound alarm, light signal, actuate relays or starter switches for motors, pumps, etc., when low occurs.
流量开关用于声音报警，灯光报警，当无流量时启动电机、泵等继电器或起动器开关。
Waterflow indicator used to sound alarm, light signal, actuate relays or starter switches for motors, pumps, etc. , when no flow occurs.
介绍了风机、水泵类负载起动时间大于15秒以上时，采用热继电器保护的方法，及控制线路在风机上应用的效果。
The article introduces detailedly the methods which are used to protect the hot relays when the fans and pumps loaded starting time is over 15 seconds.
本文提出电流继电器控制绕线式异步电动机起动电路改进方法，并对改进电路优劣进行了分析。
A method in the improvement of current relay controls winding asynchronous motor starting circuit is put forward, and the merit, demerit of it are described in the paper.
为改善地面操作起重机的起动、点动运行性能，可选用绕线型电动机加外延时继电器控制。
Slip-ring motor can be used in conjunction with time delay relays for floor operated cranes to improve their travelling quality during start and inching.
流量开关用于声音报警，灯光报警，当无流量时启动电机、泵等继电器或起动器开关。
Flow switch used to sound alarm, light signal, actuate relays or starter switches for motors, pumps, etc., when no flow occurs.
流量开关用于声音报警，灯光报警，当无流量时启动电机、泵等继电器或起动器开关。
Flow switch used to sound alarm, light signal, actuate relays or starter switches for motors, pumps, etc., when no flow occurs.
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