CHINT U4 Surge Protective Device,
U4 surge protector device, referred to as SPD, is suitable for AC 50/60Hz,
rate voltage does not exceed 600V low-voltage power supply system,
complies to both UL1449 and IEC 61643-11 standards.
The main function is to suppress the transient overvoltage below the equipment impulse overvoltage,
discharge the surge energy, so as to protect the safety of the system circuit and equipment.
