有没有介绍安全继电器的资料，例如：Safety relay 3TK28系列

把全部型号写出来

3TK2804

型号还是不全。

the back-up combination units can be used in emergency-off circuits and for monitoring protective devices. the circuits of safety relay are redundant according to DIN VDE 0113 so that in the case of a fault in one of the contactor relays the funciton of the safety circuit is maintained. the contacts of the contactor relays are checked for proper opening and closeing in every ON and OFF cycle of the machine to be switched.

此是西门子 的产品，有没有他的参数！

我们能解决,如有需要请联系.

我有    数控机床安全继电器的相关资料。
如  pilz  的安全继电器。
本人ＱＱ：390277721
EAMIL:ROGER_SUNRISE@163.COM
     

是一个安全信号的中间继电器吧

好象是SIEMENS的中间继电器吧，带浪涌抑制器的那种