Littelfuse KSPSA21FT is a microcontroller-based time delay relay with a steady state output load rating of 1A and 10A inrush for 16ms. It has 0.25in. male quick connect terminals for easy installation, and operates on an input AC line frequency of 50/60Hz with a tolerance of ±15%. With its encapsulated circuitry and ≤2VA power consumption, it ensures reliable and efficient performance. It offers a repeat accuracy of ±0.5% or 20ms, insulation resistance of ≥100, and setpoint accuracy of ≤±2%. With a reset time of ≤150ms and time delay tolerance of ±2%, it meets various application needs. It also provides a dielectric breakdown of ≥2000V between terminals and mounting surface. The output voltage drop is ≅2.5V @ 1A, while the open state leakage current is ≅5A @ 240V ac. Its initiate time is ≤20ms and can handle up to 1500 operations per minute.