Littelfuse KRD9120B is an encapsulated time delay relay with a maximum output load rating of 10 A resistive @ 125 V AC, 5 A resistive @ 230 V AC and 28 V DC, and 1/4 hp @ 125 V AC. It has 0.25 in. male quick connect terminals for easy termination. The relay has a wide input tolerance of -15% to 20% and a repeat accuracy of ±0.5% or 20 ms. It operates in up to 95% non-condensing humidity and has a power consumption of ≤2 W. The time delay type is microcontroller with watchdog circuitry, with a reset time of ≤150 ms. It has a life expectancy of 1 x 10⁵ electrical and 1 x 10⁷ mechanical operations. The relay has a polarity protection for DC units and a ≤10% input DC ripple. The maximum output voltage is 250 V.