MTN Entertainmentin the American electrical system, the neutral wire is connected to the ground in the breaker box, which means that you can install 4-wire smart switches that require a dedicated neutral even if you only have 3 wires (hot, load, and ground) in the junction box, as is typical in older American houses. this is achieved by connecting the load and ground wires on the switch to the ground wire in the junction box. for more information on the American electrical system, I recommend the video by Technology Connections that goes in depth into the subject.
Installing a 4 wire smart light switch with only 3 wires.MTN Entertainment2021-01-06 | in the American electrical system, the neutral wire is connected to the ground in the breaker box, which means that you can install 4-wire smart switches that require a dedicated neutral even if you only have 3 wires (hot, load, and ground) in the junction box, as is typical in older American houses. this is achieved by connecting the load and ground wires on the switch to the ground wire in the junction box. for more information on the American electrical system, I recommend the video by Technology Connections that goes in depth into the subject.