Littelfuse ECS31AC is a versatile product with a range of output load ratings: 10A resistive @ 240V, 1/4 hp @ 125V, and 1/2 hp @ 250V. It features a 0.25 in. male quick connect terminal, -15% to 20% input tolerance, and humidity resistance up to 95%. The trip delay range is adjustable from 0.150 to 7s, with a fast response time of ≤75ms. The current sensor range is maximum 50A for steady state and 300A for inrush current. It uses peak detection with a toroid-type sensor and has analog trip delay. The sensor mode can be set to over or undercurrent, and the trip point range is adjustable from 2 to 20. The product ensures reliable performance with ±15% trip delay tolerance, ±5% trip point tolerance, and ±5% trip point hysteresis.