220V 100A Class A Power Amplifier Soft Start Delay Temperature Protection Board with Gas Discharge Tube

Features 100 Brand new and high quality Function The board is equipped with a gas discharge tube The gas discharge tube is composed of a pair of cold cathode plates which are separated from each other and enclosed in a ceramic tube filled with a certain inert gas Ar The gas discharge tube is turned off under normal operating conditions and its interelectrode resistance is above the megaohm level When the surge voltage exceeds the withstand voltage of the circuit system the gas discharge tube was breakdown and the arc discharge phenomenon occurs Because the arc voltage is low it is only several tens of volts which can limit the further rise of the surge voltage in a short time The gas discharge tube uses the above principle to limit the surge voltage and discharges the overcurrent and limits the overvoltage to the circuit Working Principle When the power is turned on power is supplied to the load through a negative temperature coefficient thermistor as the thermistor temperature increases the resistance drops the voltage rises slowly thus effectively inhibiting the inrush current impact on the line and other electrical appliances About 2 seconds after the relay ttracts gathers Adjustable suction time see the picture for details short circuit thermistor the power supply through the relay contacts directly to the load the load into the normal working condition Convenient Use This board uses ultra high current 100A pure copper lead relays and large therm