The hs protector is used for the ac power input circuit of electronic equipment; it protects the equipment from invasion by lightning surges and other abnormal voltages from the power source line.

Since it is a lead wire type device. it can be attached to printed circuit boards. the relay terminal boards. etc. ; it has a space saving shape; and it is highly economical.

The accuracy grade of frequency collection is improved, the function modular to prevent lightning and electromagnetic disturbance of signal and power source is added.