Summary

AC 36V power supplies are low-voltage AC power, primarily used in scenarios with high electrical safety requirements or moderate power demands. Typical applications include low-voltage control equipment such as PLCs (Programmable Logic Controllers), sensors, and relays. Although AC 36V power ports are low-voltage systems, the connected equipment is often high-precision, high-safety control or medical equipment, which is extremely sensitive to surges. Lightning, operational overvoltages, system fault currents (such as short circuits), and ESD (Electrostatic Discharge) can cause instantaneous high-voltage surges of several thousand volts, leading to equipment short circuits and damage, or even more serious safety accidents such as fires. Through graded protection and appropriate selection, surge protection schemes for AC 36V power supplies can effectively resist instantaneous overvoltages, significantly improving system reliability.

Testing Standards
IEC 61000-4-5, GB/T 17626.5, EN61000-4-5