Littelfuse 111P is a 1 hp surge suppressor designed to protect equipment from voltage surges. It has a load rating of 1 hp @ 120 Volts with a maximum output current of 16 A. It can be easily installed using torque termination of 13 in-lbs or wire termination for solid or stranded wires ranging from 10 to 22 AWG. The input AC line frequency can be either 50 or 60 Hz, with a 20% increase in all delay timers for a 50 Hz frequency. The device has a trip delay range of 5 s for overcurrent and 4 s for dry-well. The maximum input power is 5 Watts. The restart delay range for over/under voltage faults is 2 s, while for all other faults it is manual or 2-225 m. The undervoltage reset voltage is set at 95 Volts and the overvoltage trip voltage is set at 132.5 Volts. It features a rapid cycle timer that allows for up to 4 restarts in a 60 s period. The overcurrent trip class is set at 125% of the calibration point. The underload is adjustable within a range of 70-90% of calibrated run power. The input load range is from 1/3 hp to 1 hp.