Littelfuse THD7621C is a compact solid-state time delay relay with a 20A steady state output load rating and 200A inrush capability. It features 0.25 in. (6.35mm) male quick connect terminals for easy installation. With an input AC line frequency of 50/60Hz and ±20% tolerance, it ensures accurate and reliable performance. The relay is encapsulated for increased durability and can withstand a humidity level of 95% non-condensing. It offers a repeat accuracy of ±0.5% or 20ms, insulation resistance of ≥100, and dielectric breakdown of ≥2000V. The setpoint vs ambient temperature and operating voltage are within ±2%. With a digital time delay type and time delay tolerance of ≤±10%, it allows precise control. The effective voltage drop is ≤5V, and the minimum output load current is 100A. The recycle time is ≤150ms after timing and ≤350ms during timing.