Generator Ac Lead Connections; Four-Lead, Single-Phase Stator; 12-Lead, Broad Range Stators - Generac Power Systems 006071-0 Owner's Manual

General Information
GENERATOR AC LEAD
CONNECTIONS
See "Voltage Codes". This generator may be rated at any one of
several voltages, either single-phase or three-phase. The electrical
wires in the unit's AC connection (lower) panel should be installed
according to the number of leads and the voltage/phase required
for the application. If there is any question regarding lead connec-
tion, refer to Figures 1.2 through 1.7.
Voltage codes apply to the type of stator assembly installed on a
particular generator.

FOUR-LEAD, SINGLE-PHASE STATOR

Four-lead generators are dual voltage coils or windings (Figure
1.2). Units may be assigned any of the following voltage codes:
• "A" units are rated 120/240 VAC, single-phase, 60 Hertz.
• "M" units are rated 110/220 VAC, single-phase, 50 Hertz.
Each stator winding in this case delivers a 110 VAC or 120 VAC
output; connecting the two windings series results in a 220 VAC
or 240 VAC output.
Figure 1.2 – Four-lead, Single-phase Stator
The neutral line is formed by a junction of stator leads 22 and
33. Therefore, connection of 120 VAC (60 Hertz) or 110 VAC (50
Hertz) loads across leads 11 and neutral, or across leads 44 and
neutral can be made.

12-LEAD, BROAD RANGE STATORS

This type of stator winding forms a 12-lead configuration and has
six coils or windings.
High Wye Stator Connection
Units with this broad range stator connection may be assigned any
of the following voltage codes (Figure 1.3):
• "K" units are rated 277/480 VAC, three-phase, 60 Hertz.
• "R" units are rated 231/400 VAC, three-phase, 50 Hertz.
6
Different voltage ratings are available from the same stator
connection by adjusting the voltage regulator.
Figure 1.3 – High Wye Stator Connection
380/480V
Low Wye Stator Connection
Units with this broad range stator connection may be assigned any
of the following voltage codes (Figure 1.4):
• "G" units are rated 120/208 VAC, three-phase, 60 Hertz.
• "N" units are rated 115/200 VAC, three-phase, 50 Hertz.
Different voltage ratings are available from the same stator
connection by adjusting the voltage regulator.
Figure 1.4 – Low Wye Stator Connection
NOTE:
380/480V
380/480V
NOTE: