Volt-Ampere Curves, AC Amps | Hobart Welding Products 4500 guide

4-6. Volt-Ampere Curves

The volt-ampere curve shows the minimum and maximum voltage and amperage output capabilities of the welding generator. Curves of all other settings fall between the curves shown.

	90
	80
	70
	60
Volts	50			Max Amp
				Max Amp
	40
AC	40
AC	30	Min Amp
	30	Min Amp
	20
	10
	0
	0	50	100	150	200

AC Amps

226 078

Notes

Work like a Pro!

Pros weld and cut safely. Read the safety rules at the beginning of this manual.

OM-4418 Page 15

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Hobart Welding Products 4500 manual Volt-Ampere Curves, Volts Max Amp Min Amp, AC Amps

Contents

Processes OM-4418210 597KDescription From Hobart to You Table of Contents Page HOT Parts can cause severe burns Symbol UsageArc Welding Hazards Electric Shock can kill Welding can cause fire or explosion Fumes and Gases can be hazardousBuildup of GAS can injure or kill ARC Rays can burn eyes and skin Compressed Air Hazards Engine Hazards Falling Unit can cause injury Welding Wire can cause injuryHOT Parts can cause burns and injury Fire or Explosion hazard Radiation can cause interference Principal Safety StandardsCalifornia Proposition 65 Warnings EMF Information − Consignes DE Sécurité − Lire Avant Utilisation Signification des symbolesUN Choc Électrique peut tuer LE Bruit peut affecter l’ouïe DES Pièces Chaudes peuvent provoquer des brûlures gravesLES Fumées ET LES GAZ peu- vent être dangereux LE Soudage peut provoquer un incendie ou une explosion DES Organes Mobiles peuvent provoquer des blessures ’EXPLOSION DE LA Batterie peut Rendre Aveugle ’AIR Comprimé peut provoquer des blessures LA Chaleur DU Moteur peut pro- voquer un incendieRisque D’INCENDIE OU D’EXPLO- Sion UNE Remorque QUI Bascule peut entraîner des blessures LE Surchauffement peut endom- mager le moteur électriqueLES Fils DE Soudage peuvent provoquer des blessures ’EMPLOI Excessif peut En ce qui concerne les implants médicaux Proposition californienne 65 AvertissementsPrincipales normes de sécurité Information EMF − Definitions − SpecificationsSymbol Definitions Weld, Power, And Engine Specifications Weld Amps At Rated Duty Cycle Dimensions, Weights, And Operating AnglesAux Power Gal./Hr Weld Power In KW Fuel Consumption Duty Cycle Generator Power CurveAC Power Volts AC Power Amperes Volts Max Amp Min Amp Volt-Ampere CurvesAC Amps Movement − InstallationInstalling Welding Generator Rating Label Location Grounding Generator To Truck Or Trailer Frame Grounding Generator When Supplying Building Systems 13 mm Full Gasoline Open/On Closed/Off Engine Prestart ChecksOil Connecting To Weld Output Terminals 350 ft 400 ft 45 m 60 m 70 m 90 m 105 m 120 m Connecting to weldSelecting Weld Cable Sizes 150 ft 200 ft 250 ft Material Thickness Reference Chart Controls See Section − Operating the Welding Generator Description Of Controls See Section To Stop turn engine switch to OffAmperage Selection Table For Stick Smaw Electrodes X 15 a + 240 V x 9 a = 4 kVA/KW OM-4418 Generator Power Panel Receptacles− Operating Auxiliary Equipment Use GFCI-protected extension cord Routine Maintenance − Maintenance Stop engine Servicing Air Cleaner Welding − TroubleshootingTroubleshooting Generator Power Engine With proper viscosity oil for operating temperatureStarting difficult Circuit Diagram For Welding Generator − Electrical Diagrams Selecting Equipment − Generator Power Guidelines Resistive Load Volts 115 Amps Grounding When Supplying Building SystemsHow Much Power Does Equipment Require? Use #10 AWG or larger insulated Farm/Home Equipment Rating Starting Watts Running Watts Approximate Power Requirements For Industrial MotorsApproximate Power Requirements For Farm/Home Equipment Industrial Motors Rating Starting Watts Running Watts Contractor Rating Starting Watts Running Watts Approximate Power Requirements For Contractor Equipment KVA/HP x HP x 1000 / Volts = Starting Amperage Power Required To Start MotorHow Much Power Can Generator Supply? Single-Phase Induction Motor Starting Requirements Typical Connections To Supply Standby Power Selecting Extension Cord Use Shortest Cord Possible − Stick Welding Smaw Guidelines Stick Welding Procedure Striking an Arc − Scratch Start Technique Electrode and Amperage Selection ChartStriking an Arc − Tapping Technique 10-30 9090 End View of Work Angle Poor Weld Bead CharacteristicsGood Weld Bead Characteristics Positioning Electrode Holder Electrode Movement During Welding Conditions That Affect Weld Bead Shape 16 in 30 1.6 mm Tack Welds Butt JointsLap Joint Tee Joint Possible Causes Corrective Actions Troubleshooting − PorosityTroubleshooting − Excessive Spatter Weld Test Troubleshooting − Lack Of Penetration Troubleshooting − Incomplete FusionTroubleshooting − Excessive Penetration Troubleshooting − Waviness Of Bead Troubleshooting − Burn-ThroughTroubleshooting − Distortion Work like a Pro Main Assembly − Parts List SR1 Start Your Professional Welding Career Now Support ServiceAssistance Hobart Welding Products Contact your Distributor for