Aurora Generators — Generator & Load Power Cable Connection
Installation · Main Breaker / contactor assembly, neutral and ground bars
From a Aurora Generators service manual covering: EGSC100ASE, EGSC200ASE, EGSC400ASE, EGSCA100ASE, EGSCA200ASE, EGSCA400ASE. Check it applies to your exact model before use.
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Before you start
- Power conductors may have voltage present that can cause severe personal injury or death. De-energize all power or control circuit conductors before beginning work.
- Improper power cable connections can cause excessive heat and subsequent equipment failure.
- Use extreme care to keep contaminants out of the ATS equipment when making the power cable connections.
Procedure
- Connect the generator power cables to the generator lugs on the contactor assembly.
- Connect the load power cables to the load lugs on the contactor assembly.
- Connect the generator neutral cable to the generator neutral lug on the neutral bar assembly.
- Connect the load neutral cable to the load neutral lug on the neutral bar assembly.
- Connect the generator and load ground cable to the generator and load ground lugs on the ground bar assembly.
Specs & values
- Wire sizes: 100A #2 AWG - 300 MCM (1 cable per phase); 200A #2 AWG - 300 MCM (1); 400A 2/0 AWG - 500 MCM (1) or 2/0 AWG - 250 MCM (2); tighten cable lugs to torque identified on the label affixed to the unit's door
Source: Aurora Generators service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.