The CT-MKC.31 is an electronic time relay from the CT-C timer range. It has 7 timing functions with time ranges from 0.05 seconds to 100 hours. It requires a control supply voltage of 12-240 volts AC or DC and has a solid-state output rated at 250 volts with a 1-ampere capacity. The control input is designed for voltage-related triggering, which is non-floating.