Build my own cabin - DIY projects

NEC 2011: Table 430.52


Max Rating of Motor Branch-Circuit Short Circuit and Ground-Fault Protective Devices
  Percentage of Full-Load Current
Type of Motor Non Time
Dual Element (Time Delay) Fuse Instantaneous Trip
Single-phase motors 300 175 800 250
AC Polyphase other than wound-rotor 300 175 800 250
Squirrel Cage - other than Design B 300 175 800 250
Design B
energy efficient
300 175 1100 250
Synchronous 300 175 800 250
Wound Rotor 150 150 800 150
Direct Current (constant voltage) 150 150 250 150

Back to Index of NEC Tables

Click the icons below to get our NEC® compliant Electrical Calc Elite or Electric Toolkit for Android and iOS.  The Electrical Calc Elite is designed to solve many of your common code-based electrical calculations like wire sizes, voltage drop, conduit sizing, etc.  The Electric Toolkit provides some basic electrical calculations, wiring diagrams (similar to those found on this website), and other electrical reference data. 

      Electrical Calc Elite    electric-toolkit-android