Littelfuse KRDB422 is an encapsulated circuitry time delay relay with a maximum switching voltage of 250V. It has a load rating of 10A resistive @ 125V ac, 5A resistive @ 230V ac and 28V dc, and 1/4 hp @ 125V ac. The termination type is a 0.25 in. (6.35 mm) male quick connect terminal. It operates at an input AC line frequency of 50/60 Hz with tolerance of -20% to +10%. It has a humidity resistance of 95% relative non-condensing and an insulation resistance of ≥100. The repeat accuracy is ±0.5% or 20 ms, whichever is greater. It consumes ≤2 VA of power and has a reset time of ≤150 ms. The time delay type is microcontroller with watchdog circuitry, and the life expectancy is electrical: 1 x 10^5 and mechanical: 1 x 10^7.