Current Load Watts Amperes | Miller Electric Big Blue 302P manual

12-11. Selecting Extension Cord (Use Shortest Cord Possible)

Cord Lengths for 120 Volt Loads

YIf unit does not have GFCI receptacles, use GFCI-protected extension cord.

			Maximum Allowable Cord Length in ft (m) for Conductor Size (AWG)*
Current
Current	Load (Watts)	4			6		8	10	12		14
(Amperes)	Load (Watts)	4			6		8	10	12		14
(Amperes)

5	600					350	(106)	225 (68)	137 (42)		100 (30)

7	840			400	(122)	250 (76)		150 (46)	100 (30)		62 (19)

10	1200	400 (122)		275 (84)		175 (53)		112 (34)	62 (19)		50 (15)

15	1800	300 (91)		175 (53)		112 (34)		75 (23)	37 (11)		30 (9)

20	2400	225 (68)		137 (42)		87	(26)	50 (15)	30 (9)

25	3000	175 (53)		112 (34)		62	(19)	37 (11)

30	3600	150 (46)		87	(26)	50	(15)	37 (11)

35	4200	125 (38)		75	(23)	50	(15)

40	4800	112 (34)		62	(19)	37 (11)

45	5400	100 (30)		62	(19)

50	6000	87 (26)		50	(15)

*Conductor size is based on maximum 2% voltage drop

Cord Lengths for 240 Volt Loads

YIf unit does not have GFCI receptacles, use GFCI-protected extension cord.

			Maximum Allowable Cord Length in ft (m) for Conductor Size (AWG)*
Current
Current	Load (Watts)	4		6		8	10	12		14
(Amperes)	Load (Watts)	4		6		8	10	12		14
(Amperes)

5	1200				700	(213)	450 (137)	225 (84)		200 (61)

7	1680			800 (244)	500	(152)	300 (91)	200 (61)		125 (38)

10	2400	800 (244)		550 (168)	350	(107)	225 (69)	125 (38)		100 (31)

15	3600	600 (183)		350 (107)	225 (69)		150 (46)	75 (23)		60 (18)

20	4800	450 (137)		275 (84)	175 (53)		100 (31)	60 (18)

25	6000	350 (107)		225 (69)	125 (38)		75 (23)

30	7000	300 (91)		175 (53)	100 (31)		75 (23)

35	8400	250 (76)		150 (46)	100 (31)

40	9600	225 (69)		125 (38)	75	(23)

45	10,800	200 (61)		125 (38)

50	12,000	175 (53)		100 (31)

*Conductor size is based on maximum 2% voltage drop

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OM-496 Page 69

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Miller Electric Big Blue 302P manual Selecting Extension Cord Use Shortest Cord Possible, Current Load Watts Amperes

Contents

OM-496 ProcessesDescription From Miller to You Table of Contents 11-1 11-211-3 Directives StandardsDeccon1 11/02 Deccon1 5/98 Sound Level Information Arc Welding Hazards Symbol Usage Engine Hazards Compressed Air Hazards Radiation can cause interference Principal Safety StandardsCalifornia Proposition 65 Warnings EMF Information LES Fumées ET LES GAZ peuvent être dangereux Signification des symboles− Consignes DE Sécurité − Lire Avant Utilisation UN Choc Électrique peut tuer LE Bruit peut affecter l’ouïe LE Soudage peut provoquer un in- cendie ou une explosionDES Particules Volantes peuvent blesser les yeux DES Pièces Chaudes peuvent provoquer des brûlures graves ’AIR Comprimé peut provoque r des blessures ’EXPLOSION DE LA Batterie peutDES Organes Mobiles peuvent provoquer des blessures LA Chaleur DU Moteur peut pro- voquer un incendie Information sur les champs électromagnétiques Principales normes de sécurité − Definitions Starting Instructions + − Engine Are possible hazards asHot muffler and exhaust pipes Can cause severe burns. Do Return To Table Of Contents CC Models CC/CV Models Manufacturer’s Rating Labels For CE Products− 50 h Std Std Symbols And Definitions − Specifications Weld, Power, And Engine SpecificationsDimensions, Weights, And Operating Angles Volt-Ampere Curves For CC Models Volt-Ampere Curves For CC/CV Models Stick ModeMIG Mode TIG Mode Duty Cycle And Overheating Fuel Consumption 15 kVA/kW Three-Phase AC Output No Weld Load AC Generator Power CurveOptional Three-Phase Generator Curves 12 kVA/kW Single-Phase AC Output No Weld Load Airflow Clearance − InstallationInstalling Welding Generator See Sections 5-2And Location Grounding Work like a Pro Using Lifting Eye To Bolt Unit In Place Mounting Welding GeneratorSupporting The Unit Mounting Surface Stop engine and let cool Installing Exhaust Pipe Charger Activating The Dry Charge Battery If ApplicableWhen electrolyte is low, add Read and follow all instruc Connecting The Battery Reinstall cover after connecting batteryConnect Negative − Cable Last Engine Prestart Checks Coolant Recovery Tank Selecting Weld Cable Sizes Connecting To Weld Output Terminals Ref 862-A / 048 720-K / 802 Socket Connecting To Remote 14 Receptacle RC14 On CC/CV Models Front Panel Controls For CC Models See Section − Operating Welding Generator − CC Models Engine Starting Controls To Start Do not use ether. Using ether voids warrantyEngine Indicator Lights Do not switch under load Set weld controls as shown to Remote Amperage Control On CC Models OptionalWeld Control/Arc Condition Information Label Example Combination Remote Amperage Control Stick Return To Table Of Contents Front Panel Controls For CC/CV Models See Section − Operating Welding Generator − CC/CV Models Voltage/Amperage Adjust Switch And Remote 14 Receptacle Use switch to select weld amperage range Process/Contactor Switch Settings Process/Contactor Switch On CC/CV Models Example Combination Remote Amperage Control TIG Remote Voltage/Amperage Control On CC/CV Models Optional Open, contact Factory Autho − Operating Auxiliary EquipmentVolt And 240 Volt Receptacles At least once a month, run en Three-Phase Power Connection Rear Of PanelClose panel opening if no connections are made to generator Optional Generator Power Receptacles 240 V 15 a AC South African Receptacle RC1Circuit Breaker CB2 Circuit Breaker CB3 − Maintenance & Troubleshooting Maintenance LabelsFor Non-CE Products Every 100 h Routine MaintenanceEvery 8 h Every 50 h Change Fuel Clean/Set InjectorsEvery 1000 h Every 2000 h Do not clean housing with air hose Servicing Air CleanerBy the warranty To clean air filter Reinstall cleanout plug Tools Needed Inspecting And Cleaning Optional Spark Arrestor Muffler Close door Tools Needed 10 mm Adjusting Engine Speed On Standard ModelsMaximum Do not set engine speed higher than specified Rpm max 61.6 Hz 1250 rpm 41.6 Hz Idle Speed AdjustmentWeld/Power Speed Adjustment Engine Speed No Load Servicing Fuel And Lubrication Systems Overload Protection Down before operating Diagnosing Causes Of Engine Fault ShutdownsDiagnostic Checks While Running Correct the cause of the shut Welding − CC Models Troubleshooting Welding − CC/CV Models Standard Generator Power Optional Three-Phase Generator Power CC/CV Models OnlyEngine Air in fuel system. See engine manual Wiring harness and componentsShutdown switch is released Out Temperature is too high see Sections 5-7and Return To Table Of Contents Circuit Diagram For CC Welding Generator − Electrical Diagrams 215 296-B Circuit Diagram For CC/CV Welding Generator 215 297-B − RUN-IN Procedure WetstackingMent damage may occur From flammables Do not Perform Run-In Procedure Using Load BankProcedure at less than Stop engine Do not touch hot exhaust Do not perform run-in Run-In Procedure Using Resistance GridBank/grid From flammables Grounding Generator To Truck Or Trailer Frame − Generator Power GuidelinesHas this symbol Selecting Equipment Use ground device as stated in electrical codes Grounding When Supplying Building SystemsHow Much Power Does Equipment Require? Earth ground if supplying 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 Power Required To Start MotorHow Much Power Can Generator Supply? Single-Phase Induction Motor Starting Requirements Typical Connections To Supply Standby Power Current Load Watts Amperes Selecting Extension Cord Use Shortest Cord Possible 109 111 -4 or − Parts List 85 Fig 118 Dia Part Mkgs Description Quantity 209 Figures 13-2 Control Box Assembly − CC Models PLG3 Control Box Assembly − CC/CV Models PC7 195 Panel, Front w/Components − CC Models RC13 032 41 40 Panel, Front w/Components − CC/CV Models Panel, Front w/Components − CC/CV Models -1Item PC4, PC5 189 Generator -1Item Generator 602 SCREW, .312−18x .75 hexwhd.66d stl pld slffmg tap−rw 601 Main Rectifier Assembly Page Page Service Your distributor also givesSupport Transportation Department Miller Electric Mfg. CoFor assistance in filing or settling claims, contact Your distributor and/or equipment manufacturer’s