Rockwell Automation 440R-N23114 Guardmaster Minotaur is a safety monitoring relay that provides the very basics for safety control systems in a 22.5mm package. It is designed for connection to a single channel safety gate, a single channel e-stop or a light curtain that provides cross fault detection. It is designed for connection to a dual channel safety gate or e-stop, as it performs cross fault detection across the inputs. The MSR126R and MSR126.1R is designed for applications where a monitored manual reset is required. Monitored manual reset requires the use of a momentary normally open switch to activate the outputs. The MSR126T and MSR126.1T are designed for applications where automatic/manual reset is required. The outputs are only two normally open safety-rated outputs. The safety outputs have independent and redundant internal contacts to support the safety function.