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The latest version of the EDR Program is currently downloadable. It includes five professional quality calculation modules. When you download the EDR Program, you will automatically receive all the active modules.

The EDR Program is for Windows 95, 98, 2000, ME, NT and XP. Sorry, there is no Mac version.

Click here for EDR Program Download

Module: AC/DC Voltage Drop Calculator, 600 Volt.

General Purpose Voltage Drop
Status: Released--included in current download
Click here for Voltage Drop Calculator description

Module: Series Voltage Drop Calculator, 600 Volts.

For Series Lighting, up to 99 Loads
Status: Released--included in current download
Click here for Series Voltage Drop Calculator description

Module: Fault Current Calculator

For Radial Distribution Systems Up to 360 Nodes
Status: Released--included in current download
Click here for Fault Current Calculator description

Module: Motor Fusing and Motor Circuit Design, Three Phase and Single Phase

Use to design a motor circuit and set the fuse size.
Status: Released--included in current download
Click here for Motor Fusing/Circuit Design description

Module:Fuse Selective Coordination Calculator

Quickly determine the required line side fuse, or the required downstream or load side fuse. The program will also allow Selective Coordination when both fuses are known.
Status: Beta--included in current download
Click here for Fuse Selective Coordination Calculator description

Watch this site for additional calculation modules in the future.

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(860) 693-0395 Use EDR software for Electrical Calculations. Use EDR software for Electrical Software. Use EDR software for Voltage Drop. Use EDR software for Short Circuit Studies. Use EDR software for Fuse Sizing. Use EDR software for Electrical Design. Use EDR software for National Electrical Code. Use EDR software for Power Engineering. Use EDR software for Electrical Engineering. Use EDR software for Electrical Construction. Use EDR software for Electrical Training. Use EDR software for Electrical Contractors. Use EDR software for Electrical Inspection. Use EDR software for Electricians.