Littelfuse KRDR420A3 is a versatile relay suitable for various applications. It has a load rating of 10A resistive @ 125V ac, 5A resistive @ 230V ac and 28V dc, and 1/4hp @ 125V ac. The relay features 0.25in. (6.35mm) male quick connect terminals for easy installation. With an encapsulated circuitry, it offers reliable performance in a compact design. It has a power consumption of ≤2 VA and a maximum output voltage of 250V. The relay operates at 50/60 Hz input AC line frequency and has a humidity tolerance of 95% non-condensing. With a repeat accuracy of ±0.5% or 20ms, it provides precise and dependable control. The KRDR420A3 has an insulation resistance of ≥100 and a setpoint vs ambient temperature and operating voltage tolerance of ≤±5%. It has a time delay tolerance of ≤±5% and a reset time of ≤150ms. The relay offers a long lifespan, with electrical life rated at 1 x 10⁵ and mechanical life at 1 x 10⁷.