Cummins/Onan — Connecting the Generator Wires
Installation · Generator leads in control box
From a Cummins/Onan owner's manual covering: 4UF-3N41, 4UF-3N42, 7UF-3N41, 7UF-3N42, 7UF-3N61. Check it applies to your exact model before use.
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Procedure
- Connect the generator leads inside the control box before operation.
- Make proper connections for the A1 and F1 leads according to the rotation which will be used.
- Connect the lower circuit breaker terminals to the load transfer switch with flexible conduit, cable, or flexible lead wire.
Specs & values
- Direction of rotation determined when facing the end opposite the drive or pulley end
Source: Cummins/Onan owner's 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.