Published: 01/2025
To calculate the size of the circuit breaker needed, we have to multiply the amp draw by 1.25 factor like this: Minimum Circuit Breaker Size = .5A × 1.25 = 15.63 Amps We can’t use a 15A breaker because the breaker ampacity should be at least 15.63A.Sizing A Circuit Breaker: Breaker Size Calculator + Amp ChartWas this helpful?LoadingJoinFeedbackThanks!Tell us moreLet's Chat People also askWhat wire size is a 2022 NEC feeder?What wire size is a 2022 NEC feeder?Obviously, it’s not all that easy to get your hands on the new 2022 NEC guidebook. That’s why we list the wire sizes for feeders ranging from 100 amp to 400 amp services, in accordance with the NEC 310. chart here: This table is quite easy to use.Electrical Feeder Size Chart: 100Videos of Feeder Breaker Sizing NEC Watch video17:50Feeder cable and Circuit Breaker Sizing for Lighting & Receptacle Panel (LP Panel) NEC PEC8.4K viewsJun 20, 2020YouTubeNoel LaudeWatch video5:29Calculate Size of Circuit Breaker for Motor NEC Standard | Circuit breaker size Calculation14.5K viewsJul 25, 2022YouTubeElectrical lecturesWatch video13:14Sizing Feeder, Branch Circuits, and Breakers For Multiple Motors on Shared Feeder **Masters Prep**.3K viewsSep 11, 2019YouTubeElectricity ExplainedWatch video7:20Understanding Different Load Calculations For a Feeder Based on the NEC2.2K viewsMar 26, 2020YouTubeSalvatore FerraraWEB215.2 (A) (1) General. Feeder conductors shall have an ampacity not less than required to supply the load as calculated in Parts III, IV, and V of Estimated Reading Time: 4 minsMike Holt's ForumMotor Feeder Breaker Size | Information by Electrical /shopGeneral Electric Feeder Circuit Breaker Type THQL 30 A 2 4.4(79)$25.004.4(79)General Electric Feeder Circuit Breaker Type THQL 30 A 2 $25.00See detailsWestinghouse Cutler Hammer Type W 800 Amp Circuit Breaker FeedereBayFree shipping$550.00      Westinghouse Cutler Hammer Type W 800 Amp Circuit Breaker FeedereBayFree shipping$550.00See detailsGeneral Electric Feeder Circuit Breaker Thermal Magnetic 20 A 1 4.3(27)$105.794.3(27)General Electric Feeder Circuit Breaker Thermal Magnetic 20 A 1 $105.79See detailsFeeder Circuit Breaker, Thermal Magnetic, 30 A, 2 Pole, 0240 VSuperior Lighting$241.Feeder Circuit Breaker, Thermal Magnetic, 30 A, 2 Pole, 0240 VSuperior Lighting$241.See detailsFeeder Circuit Breaker, Type Thql, 90 A, 2 4.6(42)$10.674.6(42)General Electric Feeder Circuit Breaker Type THQP 20 A 1 $10.67See detailsFeeder Circuit Breaker, Thermal Magnetic, 30 Amp, 2 $173.69See detailsGeneral Electric Feeder Circuit Breaker Thermal Magnetic 15 A 1 4.6(19)$105.794.6(19)General Electric Feeder Circuit Breaker Thermal Magnetic 15 A 1 $105.79See detailsGE THQL2170 Feeder Circuit Breaker, Type THQL, 70 A, 24.0(3)$50.4.0(3)GE THQL2170 Feeder Circuit Breaker, Type THQL, 70 A, 2$50.43See detailsGE THQL2130 Feeder Circuit Breaker, Type THQL, 30 A, 24.4(79)$17.574.4(79)GE THQL2130 Feeder Circuit Breaker, Type THQL, 30 A, 2$17.57See detailsGE THQL20 Feeder Circuit Breaker, Type THQL, 20 A, 24.4(72)$17.574.4(72)GE THQL20 Feeder Circuit Breaker, Type THQL, 20 A, 2$17.57See detailsGeneral Electric Feeder Circuit Breaker Type THQP 30 A 2 4.8(48)$24.874.8(48)General Electric Feeder Circuit Breaker Type THQP 30 A 2 $24.87See detailsSee allExploreElectrical Feeder Size ChartNEC Residential Service Conductor SizeElectrical Service Feeder SizingNEC Service Wire Size ChartNEC 310.NEC Feeder Ground Wire SizingLearnMetricsElectrical Feeder Size Chart: 100Mining Feeder Breaker | High Capacity Feeder BreakersAdFeeder Breaker utilize a crushing roll and drag conveyor to process variety minerals. Ask! Reduce installation space . Low Investment Cost. High efficiency. Low Energy Consumption.Types: Mineral Sizers, Coal Sizers, Lignite Crusher, Twin Shaft SizerCoal CrusherConveyor RollersTwin Shaft Mineral SizerHard Rock SizingDownload CenterHeavy Duty Belt Conveyorsamazon.com2 pole 20 amp gfci breaker | Amazon.com Official SiteAdFind Deals on 2 pole 20 amp gfci breaker in Electrical on Amazon.Site visitors: Over 1M in the past monthTypes: Automotive, Baby, Books, Fashion, Gift Cards, Groceries and more20gage copper wireRV Power SocketShop qo breaker 20 ampQO Tandem Circuit BreakerQO Tandem Breaker60 Amp 2 Pole Breakerbreaker size chart necstandard breaker size chartwire and breaker size chartstandard size breakers necbreaker selection chartcircuit breaker rating sizing chartcircuit breaker size chartlist of breaker sizesMorePeople also search forbreaker size chart necwire and breaker size chartbreaker selection chartstandard breaker size chartstandard size breakers neccircuit breaker rating sizing chart feeder breaker sizing necbreaker size chart necstandard breaker size chartwire and breaker size chartstandard size breakers necbreaker selection chartcircuit breaker rating sizing chartcircuit breaker size chartlist of breaker sizesPaginationMoreMore