In my experience, most of the control panels I have seen here in the USA require 480 VAC, 3 phase and (typically) no neutral is required/supplied. Then, internal to the control panel, a small transformer is used to step down to 120VAC single phase that is used to power small DC power supplies, cooling fans, laptop for programming, etc.
How does this compare to the EU?
My understanding is that a harmonised 400VAC, 3 phase is typically supplied to industrial control panels. If a neutral was provided, then 230 VAC would also be readily available. But is a neutral typically furnished to control panels thereby eliminating the requirement to supply a small transformer to power devices such as power supplies, cooling fans, laptop for programming?
If anyone has some pdf schematics for European equipment they can share, I'd love to take a peak at some power distribution examples for industrial control panels.
How does this compare to the EU?
My understanding is that a harmonised 400VAC, 3 phase is typically supplied to industrial control panels. If a neutral was provided, then 230 VAC would also be readily available. But is a neutral typically furnished to control panels thereby eliminating the requirement to supply a small transformer to power devices such as power supplies, cooling fans, laptop for programming?
If anyone has some pdf schematics for European equipment they can share, I'd love to take a peak at some power distribution examples for industrial control panels.