... indicator, LO, L bright says at least a three-phase input in phase, or other malfunction. Total composite switch is for the ... B, C is also divided, three points for A compound switch type B, C three-phase asynchronous and controlled, divided.5. Main technical Parameter1 ... .5KV/1 min, allowing the harmonic<10%5. And the control voltage DC12V: with neutral (N).6. Ordering instruction1. The composite ...