Miller Electric Inverter Rack manual Connecting Input Power To Rack

3-9. Connecting Input Power To Rack

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Have only qualified persons make this installation.

YTurn Off welding power sources before inspecting or installing rack.

1Control Box Open access door.

2Line Disconnect Device Of Proper Rating

3Input Conductors

4Grounding Conductor

Select size and length using Sec- tion 3-10or 3-11.Conductors must be able to carry the combined am- perage draw of all welding power sources mounted on the rack. Con- ductor insulation must comply with national, state, and local electrical codes.

5 Strain Relief Connector

Insert conductors through strain relief.

6Input Terminal Block

7Line Terminals

8Ground Terminal

Connect grounding conductor to ground terminal first. Then connect input conductors to line terminals.

Close control box access door.

Install grounding conductor and in- put conductors in conduit or equiv- alent to deenergized line discon- nect device.

Connect grounding conductor first, then line input conductors.

Be sure grounding conductor goes to an earth ground.

9 Overcurrent Protection

Select type and size using Section 3-10or 3-11.Install into deen- ergized line disconnect device (fused disconnect switch shown).

ST-801 702 / Ref. ST-801 703

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