The Schmersal safety relay SRB 301MC is a compact control unit for monitoring emergency stop switches and interlocks of safety doors. With a supply voltage of 24V AC/DC, this relay is designed for use in various machines and systems. The design allows for easy integration into existing safety circuits. It provides 2 normally open relay outputs for the safety circuit and 1 normally open output for internal monitoring of the system. The degree of protection is IP20 for the housing and IP40 for the connections.
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