Single Line Diagram Sizer is a reference tool for electrical engineers, designers, and contractors to verify wire and conduit sizes based on selected load. All data is based on the NEC and results provide minimum requirements. This app is used as a quick reference for designing or verifying design drawings or installations.
- App Rewritten from the ground up.
- Automatic calculation updates.
- Refreshed interface.
Ratings and ReviewsSee All
Just what I've been looking for
Sizes my wires, does motor calcs. What else do you need?
Important Ground Conductor Distinction
The ground conductor indicated is actually sized to be a Grounding Electrode Conductor for a Service Entrance. I believe that most folks would prefer, and may be assuming, that it was sized as an Equipment Grounding Conductor. Beware of this distinction when using this App!
Great app, wish the derating scale had option for F* or C* ambient. Also would be nice to have length of wire run scale.
Developer Response ,
Thanks for the feedback, derating scale has been added for F* or C*
With Family Sharing set up, up to six family members can use this app.