... of electricity children were filling products, and type two kinds, composite switch used for cutting threephase electricity containers, have the ... , service, etc. In stead of touch, thyristor switch, common compound switch, widely used in low voltage reactive power claims.2 ... use life 100,000 times.2. Switch 2000V switch power voltage: acuities than 2W3. Switch pressure resistance than 0.1V: 20S, ...