Miller Electric NT 456 CV, NT 456 CC manual Weld Output Terminals And Selecting Cable Sizes

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S-0007-E

4-8. Weld Output Terminals And Selecting Cable Sizes

! Turn Off power before connecting to weld output terminals.

Positive Negative Terminal

 

 

Total Cable (Copper) Length In Weld Circuit Not Exceeding

 

 

 

 

 

 

 

 

 

 

 

100 ft (30 m) Or Less

150 ft

200 ft

250 ft

300 ft

350 ft

400 ft

 

(45 m)

(60 m)

(70 m)

(90 m)

(105 m)

(120 m)

 

 

 

 

 

 

 

 

 

 

 

 

Welding

10 − 60%

60 − 100%

 

 

 

 

 

 

Duty

 

 

10 − 100% Duty Cycle

 

 

Amperes

Duty Cycle

 

 

 

 

Cycle

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100

4

4

4

3

2

1

1/0

1/0

 

 

 

 

 

 

 

 

 

150

3

3

2

1

1/0

2/0

3/0

3/0

 

 

 

 

 

 

 

 

 

200

3

2

1

1/0

2/0

3/0

4/0

4/0

 

 

 

 

 

 

 

 

 

250

2

1

1/0

2/0

3/0

4/0

2-2/0

2-2/0

 

 

 

 

 

 

 

 

 

300

1

1/0

2/0

3/0

4/0

2-2/0

2-3/0

2-3/0

 

 

 

 

 

 

 

 

 

350

1/0

2/0

3/0

4/0

2-2/0

2-3/0

2-3/0

2-4/0

 

 

 

 

 

 

 

 

 

400

1/0

2/0

3/0

4/0

2-2/0

2-3/0

2-4/0

2-4/0

 

 

 

 

 

 

 

 

 

500

2/0

3/0

4/0

2-2/0

2-3/0

2-4/0

3-3/0

3-3/0

 

 

 

 

 

 

 

 

 

600

3/0

4/0

2-2/0

2-3/0

2-4/0

3-3/0

3-4/0

3-4/0

 

 

 

 

 

 

 

 

 

700

4/0

2-2/0

2-3/0

2-4/0

3-3/0

3-4/0

3-4/0

4-4/0

 

 

 

 

 

 

 

 

 

*Weld cable size (AWG) is based on either a 4 volts or less drop or a current density of at least 300 circular mils per ampere. Contact your distributor for the mm2 equivalent weld cable sizes.

4-9. Connecting Weld Output Cables

4

 

1

 

 

 

 

 

Do not place

 

 

 

anything between

 

 

 

weld cable terminal

 

 

 

and copper bar.

 

2

 

 

Tools Needed:

3

 

 

 

 

 

3/4 in (19 mm)

 

 

 

 

 

Correct Installation

! Turn off power before connecting to

1

Weld Output Terminal

weld output terminals.

 

2

Supplied Weld Output Terminal Nut

! Failure to properly connect weld

3

Weld Cable Terminal

cables may cause excessive heat

4

Copper Bar

and start a fire, or damage your ma-

Remove supplied nut from weld output ter-

chine.

 

minal. Slide weld cable terminal onto weld

803 778-B

Incorrect Installation

output terminal and secure with nut so that weld cable terminal is tight against copper bar. Do not place anything between weld cable terminal and copper bar. Make sure that the surfaces of the weld cable terminal and copper bar are clean.

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Contents Processes OM-2243212 113TDescription File MultiprocessFrom Miller to You Table of Contents Page Arc Welding Hazards Symbol UsageElectric Shock can kill HOT Parts can cause severe burnsARC Rays can burn eyes and skin Fumes and Gases can be hazardousWelding can cause fire or explosion Flying Metal or Dirt can injure eyesFire or Explosion hazard Welding Wire can cause injuryFalling Unit can cause injury Moving Parts can cause injuryCalifornia Proposition 65 Warnings Principal Safety StandardsEMF Information About Implanted Medical DevicesUNE Décharge Électrique peut entraîner la mort Symboles utilisésDES Pièces Chaudes peuvent provoquer des brûlures graves LES Fumées ET LES GAZ peuvent être dangereuxLE Soudage peut provoquer un in cendie ou une explosion LES Bouteilles peuvent exploser si elles sont endommagées LE Bruit peut endommager l’ouïeRisque D’INCENDIE OU D’EXPLO- Sion LA Chute DE L’APPAREIL peut blesserProposition californienne 65 Avertissements LES Fils DE Soudage peuvent provoquer des blessuresLE Soudage À L’ARC risque de provoquer des interférences Principales normes de sécurité Information EMFEn ce qui concerne les implants médicaux OM-2243 − Definitions Nameplate Safety Symbols− Installation SpecificationsDuty Cycle And Overheating CV Mode CC ModeVolt-Ampere Curves 100 200 300 400 500 600Movement Location Selecting a LocationDimensions And Weights DimensionsWeight Turn Off power before connecting to receptacle Be careful when placing or moving unit over uneven surfacesTipping VAC Receptacle And Circuit BreakersWeld Output Terminals And Selecting Cable Sizes Connecting Weld Output CablesTurn off power before con Connecting Remote ControlRemote 14 Receptacle Information SocketPlacing Jumper Links Electrical Service GuideWelding Power Source Input Power Connections Connecting Input PowerDisconnect Device Input Power Con- nections = GND/PE Earth GroundControls − OperationMeter Functions For CC/CV Models Touch Seconds Do not Strike Like a Match Lift-Arc TIG Procedure For CC/CV ModelsRoutine Maintenance − Maintenance & TroubleshootingDisconnect power before maintaining Disconnect input power be- fore opening rear access doorVoltmeter/Ammeter Help Displays HE.LTrouble Remedy TroubleshootingCircuit Diagram For NT 456 CC/CV Models − Electrical DiagramMain Assembly − Parts ListTHERMISTOR, NTC 10K OHM @ 25 DEG C 34IN Lead 14 12 274 Panel, Front With ComponentsPanel, Front With Components -1Item IGBT/Capacitor Assembly 221 IGBT/Capacitor Assembly -1itemPanel, Rear With Components Service Your distributor also givesSupport Miller Electric Mfg. Co To locate a Distributor or Service Agency visitFor assistance in filing or settling claims, contact Your distributor and/or equipment manufacturer’s
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