So, hands up who things a normal 3 phase contactor wired to break LNE meets 543.3.3.101 for the purposes of 'unplugging' the car charger if the mains voltage goes too high or low.
Clue it is trick question, can we be sure that protective conductor to be disconnected last and connected first ?
This requires fitting special contact spacers under the actuator bar, or some cunning redundant contact and delay arrangement . Late- break relays do exist, but they are not exactly common yet.
So, hands up who things a normal 3 phase contactor wired to break LNE meets 543.3.3.101 for the purposes of 'unplugging' the car charger if the mains voltage goes too high or low.
Clue it is trick question, can we be sure that protective conductor to be disconnected last and connected first ?
This requires fitting special contact spacers under the actuator bar, or some cunning redundant contact and delay arrangement . Late- break relays do exist, but they are not exactly common yet.
