... malfunction, service, etc. In stead of touch, thyristor switch, common compound switch, widely used in low voltage reactive power claims.2 ... and no harmonics.3. And the input signal and the switch photoelectric isolation, EMC protective measures, strong anti-jamming capability.4 ... use life 100,000 times.2. Switch 2000V switch power voltage: acuities than 2W3. Switch pressure resistance than 0.1V: 20S, ...