Splitting 3-phase circuits for 3 high draw theater fixtures.

[Richard Burns]

If a breaker trips on the three circuit arrangement only the one light goes out. You can use thinner cable on the 3 circuit arrangement.

The single circuit arrangement may use less cable if the lights are on a long run and would save having three runs of cable. This is simpler to wire. You also only need one breaker space!

 

[Marvo]

If they're on trailing cable and unfused plug rather go with separate smaller rated circuits. It's more likely to trip that way if there's ever damage to a trailing cable.

 

[Marshall Kidd]

If a breaker trips on the three circuit arrangement only the one light goes out. You can use thinner cable on the 3 circuit arrangement.

The single circuit arrangement may use less cable if the lights are on a long run and would save having three runs of cable. This is simpler to wire. You also only need one breaker space!

Ok that makes much more sense thank you. I will definitely look into both.

Thanks.