9
SC900 Setup and Installation
Preparing the Unit for Primary Power
Only qualified personnel should perform this installation.
♦
Turn the input power off at the disconnect switch or fuse box before working on the welder.
♦
Do not touch electrically hot parts.
Remove the top cover of the SC900. All of the connections that will need to be made are accessi‐
ble with the top cover removed.
Primary Power Cable
Route the Primary Power Cable through the Power Inlet Hole in the center connector on the back‐
side of the welder.
Connect the power leads (Black, White, Red) to the L1, L2, and L3 connectors as shown in photo
Firmly tighten screws that hold the power leads in place.
Attach the ground wire (Green) to the ground lug of as shown in above.
Once the Primary Power Cable is connected, tighten Power Cable Clamp on the back of the
welder, holding the power cable firmly in place.
