Miller Electric XMT 4-Rack manual Connecting Input Power To Rack, Input Power Connections

4-6. Connecting Input Power To Rack

WARNING

ELECTRIC SHOCK can kill.
•	Do not touch live electrical parts.
•	Turn Off welding power sources before inspecting or installing rack.
•	Have only qualified persons install rack.
•	Installation must meet National Electrical Code and all other codes.	swarn3.1* 2/93

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87

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6 5 9 5

Have only qualified persons make this installation.

1Rear Control Box Center

2Access Panel

Remove access panel.

3Line Disconnect Device Of Proper Rating

4Input Conductors

5Grounding Conductor

Select size and length using Table 4-2. Conductors must be able to carry the combined amper- age draw of all welding power sources mounted on the rack. Con- ductor insulation must comply with national, state, and local electrical codes. Use lugs of proper amper- age capacity and correct hole size.

6User-Supplied Strain Relief Connector

Insert conductors through strain relief.

7Input Terminal Block

8Line Terminals

9Ground Terminal

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

Reinstall access panel.

Install grounding conductor and in- put conductors in conduit or equiv-

3alent to deenergized line discon- nect device.

Connect grounding conductor first, then line input conductors.

Be sure grounding conductor goes

10to an earth ground.

10 Overcurrent Protection

Select type and size using Table 4-2. Install into deenergized line disconnect device (fused disconnect switch shown).

ST-151 270-C

Figure 4-6. Input Power Connections

OM-815 Page 10