Basic Wiring Question

[Gshell82]

Can I wire multiple disconnect switches from the same 120V circuit breaker?

I know an electrician wires many receptacles etc. in parallel from one breaker but is this ok to do with disc. switches loads as well?

Thanks

 

[petersonra]

Can I wire multiple disconnect switches from the same 120V circuit breaker?

I know an electrician wires many receptacles etc. in parallel from one breaker but is this ok to do with disc. switches loads as well?

Thanks View attachment 20457

generally yes. no real reason to open the neutral at the switch though.

 

[Gshell82]

generally yes. no real reason to open the neutral at the switch though.

Thank You. I am not sure what that means though to "open the neutral" at the switch.

I just have some small 120V HVAC loads, each with its own fused disc., and I just want to make sure I can wire them both to the same circuit breaker at the panel.

Thanks

 

[GeorgeB]

think about light switches; often several per branch circuit

 

[al hildenbrand]

I just have some small 120V HVAC loads, each with its own fused disc., and I just want to make sure I can wire them both to the same circuit breaker at the panel.

There are a lot of mechanical configurations of "disconnects". Some have solid neutrals, others no neutral terminal bar at all, others have the neutral going though a switch.

If the calculated load of the "small HVAC loads" does not exceed the let-through of the overcurrent protective device, and the manufacturer's instructions don't require separate circuits, then, yes.

 

[victor.cherkashi]

I use one (15A or 20A) circuit for up to 8 VAV boxes. Each box has it's motor rated safety disconnect switch.

Sent from my Nexus 5 using Tapatalk

 

[victor.cherkashi]

In one project I provided 80A feeder to a roof, splice to two 50A fused switches for two CU's

Sent from my Nexus 5 using Tapatalk

 

[ggunn]

Thank You. I am not sure what that means though to "open the neutral" at the switch.

The switch should interrupt (open) the hot conductor when you turn it off but not the neutral.