J&L logo

Home
About Us
Contact Us
Staff
Our Community
Projects
Employment
Useful Links
Useful Tools

Motor Calculator

 

Motor Calculator

Based on tables in the 2008 NEC®
Select phase, then operating voltage and then horsepower.
Phase
Voltage
Horsepower
Full load current in amps (NEC)
blue dot
Minimum copper wire size (AWG or kcmil)
(75° C) THW, THHW, THWN, XHHW
blue dot
RM Conduit size - inches (metric designator)
- 3 phase, 3 wire THW, THW-2, THHW
blue dot
RM Conduit size - inches (metric designator)
- 3 phase, 3 wire THHN, THWN, XHHW,
THWN-2, XHHW-2
blue dot
RM Conduit size - inches (metric designator)
- 3 conductors Type MV-90 non-shielded
power cable
blue dot
          Note: Single phase, 2 wire.
          Tables used: 300.1(C), 310.16, 310.73 (5kV), 430.248,
          430.250, Annex C: Table C.8
          NEC, National Electrical Code, (NFPA 70) are registered
           Trademarks of NFPA.

Return

 

HOME  |   ABOUT US  |   CONTACT US  |   STAFF  |   COMMUNITY  |   PROJECTS  |   EMPLOYMENT  |   LINKS  |   TOOLS  |   SITE MAP

© 2008 Mortenson Corporation