I always thought that switching the neutral like that wasn't right but wasn't 100% sure why.
I have some contactor controlled installs but few and far between. The reason they shut down the neutral is because there is several relays controlling several pumps but only one neutral to all relays. Easy?....
I'm involved in a location that has no shutdowns and they want to put one in. No chance they spring for the money to put in a contactor,although I'm thinking shunt trip?? and a contactor might be cheaper.
Any other suggestions???
