Miller Electric Intellifire 250 manual = GND/PE Earth Ground Tools Needed 5/16

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3-5. Connecting 3-Phase Input Power For Models With Customer Supplied Cord

3

= GND/PE Earth Ground

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8

11

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4

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Tools Needed: 5/16 in

3/8 in

YInstallation must meet all National and Local Codes − have only quali- fied persons make this installation.

YDisconnect and lockout/tagout in- put power before connecting input conductors from unit.

YMake input power connections to the welding power source first.

YAlways connect green or green/ yellow conductor to supply grounding terminal first, and never to a line terminal.

See rating label on unit and check input voltage available at site.

1Input Power Conductors (Customer Supplied Cord)

Select size and length of conductors using Section 3-6. Conductors must comply with national, state, and local electrical codes. If applicable, use lugs of proper amperage capacity and correct hole size.

Welding Power Source Input Power Connections

2 Strain Relief

Route conductors (cord) through strain re- lief and tighten screws.

3Fuse Block Cover Remove fuse block cover.

4Machine Grounding Terminal

5Green Or Green/Yellow Grounding Conductor

Connect green or green/yellow grounding conductor to welding power source grounding terminal first.

6Welding Power Source Line Terminals

7Input Conductors L1 (U), L2 (V) And L3 (W)

Connect input conductors L1 (U), L2 (V) and L3 (W) to welding power source line terminals.

Install fuse block cover. Install welding power source wrapper.

Disconnect Device Input Power Connections

8Disconnect Device (switch shown in OFF position)

9Disconnect Device (Supply) Grounding Terminal

Connect green or green/yellow grounding conductor to disconnect device grounding terminal first.

10 Disconnect Device Line Terminals

Connect input conductors L1 (U), L2 (V) And L3 (W) to disconnect device line terminals.

11 Over-Current Protection

Select type and size of over-current protection using Section 3-6(fused dis- connect switch shown).

Close and secure door on line disconnect device. Remove lockout/tagout device, and place switch in the On position.

803 766-A / Ref. ST-801 825-C

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Contents Visit our website at Induction Heating Power Source2006−05 Induction HeatingFrom Miller to You Table of Contents Page Symbol Usage − Safety Precautions − Read Before UsingMarks a special safety message Induction Heating HazardsUse only genuine Miller/Hobart replacement parts Principal Safety StandardsCalifornia Proposition 65 Warnings Flying Metal or Adhesive can injure eyesAbout Pacemakers EMF InformationAvertissement − Mesures DE Securite Pour LE Chauffage PAR InductionPorteurs de stimulateur cardiaque, restez à distance DES Organes Mobiles peuvent provoquer des blessures En ce qui concerne les stimulateurs cardiaques Specifications − InstallationConnecting Head/Coil to Power Source Remote 14 Socket Information Remote 14 Receptacle RC14 Information and ConnectionsSocket Information Disconnect Device Input Power Connections Welding Power Source Input Power Connections= GND/PE Earth Ground Tools Needed 5/16 Hz Three Phase Electrical Service Guide− Operation ControlsRoutine Maintenance − Maintenance & TroubleshootingSafety Interlock Switch OverheatingMeasuring Tuning Capacitor Voltage Power Source Receptacle Plug Ground Fault ProtectionMeasuring Input Capacitor Voltage Diagnostic LED’s Tuning Chart TroubleshootingTrouble Remedy OM-184 227 Circuit Diagram − Electrical Diagram204 963-A Main Assembly − Parts ListFM2 Center Baffle Assembly -1 Item 180 Page Page Page Your distributor also gives ServiceSupport For assistance in filing or settling claims, contact To locate a Distributor or Service Agency visitYour distributor and/or equipment manufacturer’s Transportation Department
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