8 awg thhn ampacity. Start date jul 8 2007. 1 the load current rating and the overcurrent protection for conductor types shall not exceed 15 amperes for 14 awg 20 amperes for 12 awg and 30 amperes for 10 awg aluminum and copper clad aluminum after any correction factors for ambient temperature and number of conductors have been applied. Jul 8 2007 1 every electrician i ask tell me different story this is important since wire are very expensive i am need to connect an air condition rated 240 50 amp 3 wires. Wire ampacity calculator enter the information below to calculate the maximum allowable ampacity for current carrying conductors.
Type uf wet or dry or corrosive locations. Types rhw thw thwn use thhw xhhw wet or dry. Maximum circuit distance voltage drop voltage at load note. Likewise when the length of the cord exceeds fifty feet there is a decrease in amperage.
Ampacities are based on the 2017 nec and do not reflect any temperature correction or ampacity adjustments that may be required. What is the ampacity for 8 awg wire. Looking for the amp rating of 8 gauge thhn copper wire. 8 thhn allowable ampacity.
1 of 2 go to page. 40 amps at 60oc 50 amps at 75oc 55 amps at 90oc. Please consult a qualified electrician or professional engineer to determine the appropriate values for your specific application. Type tw wet or dry.
Electrical contractor electrician santa monica ca venice ca mar vista culver city westchester ca. Enter maximum amps in circuit. Wire size awg or kcmil. Type and location.
8 awg thhn 900c copper wire is limited to 40 amperes where connected to a disconnect switch with terminals rated at 600c. Enter the information below to calculate the appropriate wire size. Location santa monica ca. Choose maximum voltage drop.
The amperage rating of a cord is a function of the wire gauge number of current carrying conductors and length of the cord. Status not open for further replies. Rated 0 2000 volts. Type thhw dry.
Types rhh thhn xhhw xhh dry and damp locations. The results of this calculator are based on. Below is the ampacity for 8 gauge thhn copper building wire available by the foot in several different colors. As excerpted from the 2002 national electrical code notes to accompany table note 1.
This same 8 awg thhn 900c wire is limited to 50 amp can someone tell me if i can use 8 awg thhn my contact. Enter voltage at circuit source. National electrical code allowable ampacities of insulated conductors. When a cord has three current carrying conductors there is a decrease in amperage.