Modern Machineroomless Elevator Circuit Sizing

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olc

Senior Member
Example received: (208V, 3 Ph)(there is a VFD)
Accelerating 24.4A
Running 19.4A
Elevator Motor Controller HP Demand 9.4


I don’t know if this is actual name-plate?
Fuse size?
Circuit wire size?

I have an idea but wanted to ask first.


I’m surprised I even got this information. Getting actual information from elevator companies pre-order is like pulling teeth. I don’t know if this is a local thing or corporate policy.
 
Example received: (208V, 3 Ph)(there is a VFD)
Accelerating 24.4A
Running 19.4A
Elevator Motor Controller HP Demand 9.4


I don’t know if this is actual name-plate?
Fuse size?
Circuit wire size?

I have an idea but wanted to ask first.


I’m surprised I even got this information. Getting actual information from elevator companies pre-order is like pulling teeth. I don’t know if this is a local thing or corporate policy.
I totally feel your pain. Typically what I've been seeing is between at the end of project is 40A-100A. To avoid delays during design (if Elevator rep is resistant to giving me info) i've been calling out 100A 3p, sizing all wire conduit panels to 100A. Then note to "coordinate with elevator installer prior to purchasing equipment. Report any discrepancies to engineer prior to rough-in".
I asked Elevator rep why they wouldnt give me info and their response was because if structural makes changes or weight capacity changes it may impact HP and they dont want to be responsible.
 
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