Miller Electric NT 456 CV, NT 456 CC manual 221, IGBT/Capacitor Assembly -1item

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Item	Dia.		Part	Description	Quantity
No.	Mkgs.		No.	Description	Quantity
			221 298	Figure 8-3. IGBT/Capacitor Assembly (Fig 8-1item 23)

. . . 1 . . .	. . . . .	. .	221 301	. . BUS PLATE, IGBT TO CAPACITOR NEGATIVE	. . . 1
. . . 2 . . .	. . . . .	. .	221 304	. . STAND−OFF, CONDUCTIVE BUS	. . . 5
. . . 3 . . .	. . . . .	. .	221 303	. . INSULATOR, BUS PLATE	. . . 1
. . . 4 . . .	. . . . .	. .	221 300	. . BUS PLATE, IGBT TO CAPACITOR POSITIVE	. . . 1
. . . 5 . . . . R3		. . 188 067		. . RESISTOR, WW FXD 100 W 200 OHM W/CLIPS	. . . 1
. . . 6 . . .	. . . . .	. .	221 299	. . TRAY, MOUNTING COMPONENTS	. . . 1
. . . 7 . . .	. . . . .	. .	010 494	. . BUSHING, SNAP−IN NYL 1.375 ID X 1.750 MTG HOLE	. . . 2
. . . 8 . . .	. . . . .	. .	224 144	. . BUS BAR, IGBT OUTPUT W/FINS	. . . 1
. . . 9 . . .	. . . . .	. .	223 387	. . ASSY, HEAT SINK/600A IGBT	. . . 1
. . . 10 . . .	TH2	. .	188 431	. . THERMISTOR, NTC 30K OHM @ 25 DEG C 27IN LEAD	. . . 1
. . . 11 . . .	. . . . .	. .	010 546	. . BUSHING, SNAP−IN NYL .375 ID X .500 MTG HOLE	. . . 1
. . . 12 . . .	. C1	. . 222 654		. . CAPACITOR, ELCTLT 35000 UF 100 VDC CAN 3.00DIA STUDMNT . . .	. . . 3
. . . 13 . . .	. . . . .	. .	222 653	. . BRACKET, MTG CAPACITOR	. . . 1
. . . 14 . . .	. . . . .	. .	010 467	. . CONN, CLAMP CABLE 1.250	. . . 1

To maintain the factory original performance of your equipment, use only Manufacturer’s Suggested Replacement Parts. Model and serial number required when ordering parts from your local distributor.

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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 utilisésLES Fumées ET LES GAZ peuvent être dangereux DES Pièces Chaudes peuvent provoquer des brûlures gravesLE 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 blesserLES Fils DE Soudage peuvent provoquer des blessures Proposition californienne 65 AvertissementsLE Soudage À L’ARC risque de provoquer des interférences Information EMF Principales normes de sécuritéEn ce qui concerne les implants médicaux OM-2243 − Definitions Nameplate Safety SymbolsSpecifications − InstallationDuty Cycle And Overheating CV Mode CC ModeVolt-Ampere Curves 100 200 300 400 500 600Movement Location Selecting a LocationDimensions Dimensions And WeightsWeight 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 Your distributor also gives ServiceSupport 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