Miller Electric OM-2241 manual Specifications, Duty Cycle And Overheating, 230

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SECTION 3 − INSTALLATION

3-1. Specifications

 

 

 

Amperes Input at Rated Load Output,

 

 

 

Voltage Range

 

 

60 Hz, Three-Phase

 

 

 

 

 

 

 

 

 

 

 

 

Rated Welding Output

DC

Max OCV DC

230 V

 

460 V

 

575 V

KVA

KW

 

 

 

 

 

 

 

 

 

 

375 A @ 35 Volts DC,

10 − 45

45

69

 

34.5

 

27.5

27.5

17.5

100% Duty Cycle

4*

 

2*

 

1.6*

1.61*

0.46*

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*While idling

3-2. Duty Cycle And Overheating

Duty Cycle is percentage of 10 min- utes that unit can weld at rated load without overheating.

If unit overheats, thermostat(s) opens, output stops, and cooling fan runs. Wait fifteen minutes for unit to cool. Reduce amperage or duty cycle before welding.

Y Exceeding duty cycle can damage unit and void warranty.

100% Duty Cycle

Continuous Welding

Overheating

V

 

0

 

 

15

 

 

OR

 

Minutes

Reduce Duty Cycle

209 810

 

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Contents
Processes OM-2241Description From Miller to You Table of Contents Page Marks a special safety message Symbol UsageArc Welding Hazards Electric Shock can killWelding can cause fire or explosion ARC Rays can burn eyes and skinFlying Metal can injure eyes Buildup of GAS can injure or killCalifornia Proposition 65 Warnings EMF Information Principal Safety StandardsAbout Pacemakers − Consignes DE Sécurité − À Lire Avant Utilisation Identifie un message de sécurité particulierLES Particules Projetées peu- vent blesser les yeux LE Soudage peut causer un incen- die ou une explosionLES Pièces Chaudes peuvent cau- ser des brûlures graves LE Bruit peut affecter l’ouïeLA Chute DE L’APPAREIL peut blesser Risque D’INCENDIE OU D’EXPLO’EMPLOI Excessif peut Faire LES Pièces Mobiles peuvent cau- ser des blessuresInformation sur les champs électromagnétiques Principales normes de sécuritéConsignes relatives aux stimulateurs cardiaques Duty Cycle And Overheating Specifications230 OverheatingVolt-Ampere Curves Selecting a Location Be careful when placing or moving unit over uneven surfacesTipping Movement Location And AirflowDimensions Dimensions And WeightsWeight VAC Receptacle And Circuit Breakers10 − 60% 60 − 100% Weld Output Terminals And Selecting Cable SizesDuty Cycle Remote 14 Receptacle RC8 Turn off power before con- necting to receptacleRemote 14 Receptacle RC8 Information InformationPlacing Jumper Links Electrical Service GuideInput Voltage Input Amperes At Rated OutputWelding Power Source Input Power Connections Connecting Input PowerDisconnect Device Input Power Con- nections Disconnect input power before maintaining Months Routine MaintenanceControls Fuse F1 Disconnect input power be- fore opening rear access doorShort Circuit Shutdown Trouble Remedy Troubleshooting Table− Electrical Diagram OM-2241 − Parts List 1Main Assembly 2Panel, Front w/Components -1Item 175 Rectifier, Si Diode SR14Panel, Rear w/Components -1Item Support ServiceMiller Electric Mfg. Co Owner’s Record