... fluctuation range is not more than the rated voltage +/-20%3. Function characteristics1. Voltage, current zero, zero, do not produce ... switch is for the protection of phase velocity.3. A,B, feeder indicator, B, CCA three-phase when lights in the state, break ... , three points for A compound switch type B, C three-phase asynchronous and controlled, divided.5. Main technical Parameter1. Rated voltage up ...