Littelfuse, Inc. SMD 10A Relay KRDI420

The KRDI420 is a compact interval time-delay relay with a 2 in. (50.8 mm) square footprint, designed for OEM applications requiring small size, isolation, and reliability. It operates on 120VAC with an onboard knob for adjustable timing from 0.1 to 10 seconds. The relay features isolated SPDT contacts rated at 10A resistive at 125VAC, 5A resistive at 230VAC and 28VDC, and 1/4 hp at 125VAC. Encapsulation provides protection against shock, vibration, and humidity. Input voltage tolerance is -20% to 10%, and the timing accuracy is ±0.5% or 20ms, whichever is greater, with factory calibration tolerance of ±5%. Termination uses 0.25 in. (6.35 mm) male quick-connect terminals, and mounting is via one #10 (M5 x 0.8) screw. Operating temperature ranges from -20°C to 60°C, with storage from -40°C to 85°C. Dimensions are 50.8 mm height, 50.8 mm width, and 30.7 mm depth.