See the NEC for conductor ampacities, correction factors, and conditions of use. * Unless specifically permitted in 240.4(E) through (G), the overcurrent protection shall not exceed 15 amperes for 14 AWG, 20 amperes for 12 AWG, and 30 amperes for 10 AWG copper or 15 amperes for 12 AWG and 25 amperes for 10 AWG aluminum and copper-clad aluminum after any correction factors for ambient temperature and number of conductors have been applied. TBS, SA, SIS, FEP, FEPB, MI, RHH, RHW-2, THHN, THHW, THW-2, THWN-2, XHH, XHHW, XHHW-2, USE-2, ZW, PV Based on NEC Table 310.60(C)(74) Ampacities of an Insulated Triplexed or Three Single Conductor Aluminum Cables in Isolated Conduit in Air Based on Conductor Temperatures of 90☌ (194☏) and 105☌ and (221☏) and Ambient Air Temperature of 40☌ (104☌)1. Based on Ambient Temperature of 30☌ (86☏). Are Decora Edge devices NEC compliant Yes, Decora Edge is compliant with.Not More Than Three Current-Carrying Conductors in Raceway, Cable, or Earth (Directly Buried). This is a basic conductor ampacity calculator tool that provides the ampacities for insulated copper conductor sizes based on the latest NEC requirements (.Rated Up to and Including 2000 Volts, 60☌ through 90☌ (140☏ through 194☏). Home > Technical Resources > NEC Ampacity Data.Allowable Ampacities of Insulated Conductors
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