Safety relay SCR-4-TD
1 NC2 NC3 NC

safety relay
safety relay
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Measured/monitored value
Contact configuration
1 NC, 2 NC, 3 NC
Other characteristics
compact, emergency stop, DIN rail


The SCR-4-TD: Safety Relay with Time Delay by IDEM are considered as an all-purpose safety monitoring relay which incorporates time and non-time delayed contacts through the aid of a tightly-packed 22.5mm housing. The safety relay allows hazardous elements of the system to be turned-off safely and easily with all the other circuits still supplied with voltage for 30 seconds. The SCR-4-TD also offers a combination of variable and instant delayed contacts when the application has to have a delayed opening time of a safety circuit following the powering up of the stop signal. The Safety Relay with Time Delay or the SCR-4-TD is also specifically used for applications that depends on a PLC control to support an initial shutdown control.


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